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Finding the Fourth Proportional to 596,332.78, 820,861.65 and 519,720.17

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Solution

The fourth proportional to 596,332.78, 820,861.65 and 519,720.17 is: 715,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    596,332.78 : 820,861.65 = 519,720.17 : x
  2. Step 2: Convert to fraction form
    596,332.78/820,861.65 = 519,720.17/x
  3. Step 3: Cross multiply
    596,332.78x = 820,861.65 × 519,720.17
  4. Step 4: Simplify right side
    596,332.78x = 426,618,356,284.48
  5. Step 5: Solve for x
    x = 426,618,356,284.48/596,332.78
  6. Step 6: Final answer
    x = 715,403.16

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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.