Home / 651,965,988.40-899,631,402.54-440,732,421.22

Finding the Fourth Proportional to 651,965,988.40, 899,631,402.54 and 440,732,421.22

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Solution

The fourth proportional to 651,965,988.40, 899,631,402.54 and 440,732,421.22 is: 608,155,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,965,988.40 : 899,631,402.54 = 440,732,421.22 : x
  2. Step 2: Convert to fraction form
    651,965,988.40/899,631,402.54 = 440,732,421.22/x
  3. Step 3: Cross multiply
    651,965,988.40x = 899,631,402.54 × 440,732,421.22
  4. Step 4: Simplify right side
    651,965,988.40x = 396,496,726,246,998,656
  5. Step 5: Solve for x
    x = 396,496,726,246,998,656/651,965,988.40
  6. Step 6: Final answer
    x = 608,155,537.71

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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.