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Finding the Fourth Proportional to 519,593.43, 717,024.96 and 290,144.32

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Solution

The fourth proportional to 519,593.43, 717,024.96 and 290,144.32 is: 400,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,593.43 : 717,024.96 = 290,144.32 : x
  2. Step 2: Convert to fraction form
    519,593.43/717,024.96 = 290,144.32/x
  3. Step 3: Cross multiply
    519,593.43x = 717,024.96 × 290,144.32
  4. Step 4: Simplify right side
    519,593.43x = 208,040,719,442.23
  5. Step 5: Solve for x
    x = 208,040,719,442.23/519,593.43
  6. Step 6: Final answer
    x = 400,391.36

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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.