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Finding the Fourth Proportional to 573,695.10, 860,542.65 and 320,715.90

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Solution

The fourth proportional to 573,695.10, 860,542.65 and 320,715.90 is: 481,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,695.10 : 860,542.65 = 320,715.90 : x
  2. Step 2: Convert to fraction form
    573,695.10/860,542.65 = 320,715.90/x
  3. Step 3: Cross multiply
    573,695.10x = 860,542.65 × 320,715.90
  4. Step 4: Simplify right side
    573,695.10x = 275,989,710,483.14
  5. Step 5: Solve for x
    x = 275,989,710,483.14/573,695.10
  6. Step 6: Final answer
    x = 481,073.85

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Similar ratio
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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.