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Finding the Fourth Proportional to 1,060.53, 1,590.16 and 475.43

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Solution

The fourth proportional to 1,060.53, 1,590.16 and 475.43 is: 712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.53 : 1,590.16 = 475.43 : x
  2. Step 2: Convert to fraction form
    1,060.53/1,590.16 = 475.43/x
  3. Step 3: Cross multiply
    1,060.53x = 1,590.16 × 475.43
  4. Step 4: Simplify right side
    1,060.53x = 756,001.30
  5. Step 5: Solve for x
    x = 756,001.30/1,060.53
  6. Step 6: Final answer
    x = 712.85

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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.