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Finding the Fourth Proportional to 532,829.78, 798,555.75 and 398,657.33

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Solution

The fourth proportional to 532,829.78, 798,555.75 and 398,657.33 is: 597,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,829.78 : 798,555.75 = 398,657.33 : x
  2. Step 2: Convert to fraction form
    532,829.78/798,555.75 = 398,657.33/x
  3. Step 3: Cross multiply
    532,829.78x = 798,555.75 × 398,657.33
  4. Step 4: Simplify right side
    532,829.78x = 318,350,103,151.15
  5. Step 5: Solve for x
    x = 318,350,103,151.15/532,829.78
  6. Step 6: Final answer
    x = 597,470.55

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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.