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Finding the Fourth Proportional to 532,987.17, 735,286.03 and 318,002.23

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Solution

The fourth proportional to 532,987.17, 735,286.03 and 318,002.23 is: 438,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,987.17 : 735,286.03 = 318,002.23 : x
  2. Step 2: Convert to fraction form
    532,987.17/735,286.03 = 318,002.23/x
  3. Step 3: Cross multiply
    532,987.17x = 735,286.03 × 318,002.23
  4. Step 4: Simplify right side
    532,987.17x = 233,822,597,227.85
  5. Step 5: Solve for x
    x = 233,822,597,227.85/532,987.17
  6. Step 6: Final answer
    x = 438,702.11

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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.