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Finding the Fourth Proportional to 532,366.74, 797,742 and 390,306.60

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Solution

The fourth proportional to 532,366.74, 797,742 and 390,306.60 is: 584,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,366.74 : 797,742 = 390,306.60 : x
  2. Step 2: Convert to fraction form
    532,366.74/797,742 = 390,306.60/x
  3. Step 3: Cross multiply
    532,366.74x = 797,742 × 390,306.60
  4. Step 4: Simplify right side
    532,366.74x = 311,363,967,697.20
  5. Step 5: Solve for x
    x = 311,363,967,697.20/532,366.74
  6. Step 6: Final answer
    x = 584,867.43

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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.