Home / 651,965,987.40-899,631,401.16-440,732,420.22

Finding the Fourth Proportional to 651,965,987.40, 899,631,401.16 and 440,732,420.22

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Solution

The fourth proportional to 651,965,987.40, 899,631,401.16 and 440,732,420.22 is: 608,155,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,965,987.40 : 899,631,401.16 = 440,732,420.22 : x
  2. Step 2: Convert to fraction form
    651,965,987.40/899,631,401.16 = 440,732,420.22/x
  3. Step 3: Cross multiply
    651,965,987.40x = 899,631,401.16 × 440,732,420.22
  4. Step 4: Simplify right side
    651,965,987.40x = 396,496,724,739,156,544
  5. Step 5: Solve for x
    x = 396,496,724,739,156,544/651,965,987.40
  6. Step 6: Final answer
    x = 608,155,536.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.