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Finding the Fourth Proportional to 567,211.74, 782,757.48 and 312,572.04

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Solution

The fourth proportional to 567,211.74, 782,757.48 and 312,572.04 is: 431,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,211.74 : 782,757.48 = 312,572.04 : x
  2. Step 2: Convert to fraction form
    567,211.74/782,757.48 = 312,572.04/x
  3. Step 3: Cross multiply
    567,211.74x = 782,757.48 × 312,572.04
  4. Step 4: Simplify right side
    567,211.74x = 244,668,102,348.86
  5. Step 5: Solve for x
    x = 244,668,102,348.86/567,211.74
  6. Step 6: Final answer
    x = 431,352.32

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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.