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Finding the Fourth Proportional to 560,745.20, 773,813.50 and 515,605.52

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Solution

The fourth proportional to 560,745.20, 773,813.50 and 515,605.52 is: 711,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,745.20 : 773,813.50 = 515,605.52 : x
  2. Step 2: Convert to fraction form
    560,745.20/773,813.50 = 515,605.52/x
  3. Step 3: Cross multiply
    560,745.20x = 773,813.50 × 515,605.52
  4. Step 4: Simplify right side
    560,745.20x = 398,982,506,892.44
  5. Step 5: Solve for x
    x = 398,982,506,892.44/560,745.20
  6. Step 6: Final answer
    x = 711,521.94

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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.