Home / 664,813,043.70-997,219,565.55-611,243,790.90

Finding the Fourth Proportional to 664,813,043.70, 997,219,565.55 and 611,243,790.90

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Solution

The fourth proportional to 664,813,043.70, 997,219,565.55 and 611,243,790.90 is: 916,865,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,813,043.70 : 997,219,565.55 = 611,243,790.90 : x
  2. Step 2: Convert to fraction form
    664,813,043.70/997,219,565.55 = 611,243,790.90/x
  3. Step 3: Cross multiply
    664,813,043.70x = 997,219,565.55 × 611,243,790.90
  4. Step 4: Simplify right side
    664,813,043.70x = 609,544,267,606,433,024
  5. Step 5: Solve for x
    x = 609,544,267,606,433,024/664,813,043.70
  6. Step 6: Final answer
    x = 916,865,686.35

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Double scale
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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.