Home / 664,992,038.20-997,488,057.30-619,642,406.20

Finding the Fourth Proportional to 664,992,038.20, 997,488,057.30 and 619,642,406.20

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Solution

The fourth proportional to 664,992,038.20, 997,488,057.30 and 619,642,406.20 is: 929,463,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,992,038.20 : 997,488,057.30 = 619,642,406.20 : x
  2. Step 2: Convert to fraction form
    664,992,038.20/997,488,057.30 = 619,642,406.20/x
  3. Step 3: Cross multiply
    664,992,038.20x = 997,488,057.30 × 619,642,406.20
  4. Step 4: Simplify right side
    664,992,038.20x = 618,085,899,981,135,488
  5. Step 5: Solve for x
    x = 618,085,899,981,135,488/664,992,038.20
  6. Step 6: Final answer
    x = 929,463,609.30

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Half scale
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Double scale
Find fourth proportional to 664,992,039.20, 997,488,058.80 and 619,642,407.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.