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Finding the Fourth Proportional to 471,569.70, 707,354.55 and 151,720.95

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Solution

The fourth proportional to 471,569.70, 707,354.55 and 151,720.95 is: 227,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,569.70 : 707,354.55 = 151,720.95 : x
  2. Step 2: Convert to fraction form
    471,569.70/707,354.55 = 151,720.95/x
  3. Step 3: Cross multiply
    471,569.70x = 707,354.55 × 151,720.95
  4. Step 4: Simplify right side
    471,569.70x = 107,320,504,312.82
  5. Step 5: Solve for x
    x = 107,320,504,312.82/471,569.70
  6. Step 6: Final answer
    x = 227,581.43

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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.