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Finding the Fourth Proportional to 560,765.52, 773,765.19 and 331,290.90

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Solution

The fourth proportional to 560,765.52, 773,765.19 and 331,290.90 is: 457,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,765.52 : 773,765.19 = 331,290.90 : x
  2. Step 2: Convert to fraction form
    560,765.52/773,765.19 = 331,290.90/x
  3. Step 3: Cross multiply
    560,765.52x = 773,765.19 × 331,290.90
  4. Step 4: Simplify right side
    560,765.52x = 256,341,366,183.77
  5. Step 5: Solve for x
    x = 256,341,366,183.77/560,765.52
  6. Step 6: Final answer
    x = 457,127.55

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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.