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Finding the Fourth Proportional to 1,124.13, 1,684.17 and 473.70

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Solution

The fourth proportional to 1,124.13, 1,684.17 and 473.70 is: 709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.13 : 1,684.17 = 473.70 : x
  2. Step 2: Convert to fraction form
    1,124.13/1,684.17 = 473.70/x
  3. Step 3: Cross multiply
    1,124.13x = 1,684.17 × 473.70
  4. Step 4: Simplify right side
    1,124.13x = 797,791.33
  5. Step 5: Solve for x
    x = 797,791.33/1,124.13
  6. Step 6: Final answer
    x = 709.70

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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.