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Finding the Fourth Proportional to 717.33, 1,074.57 and 473.12

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Solution

The fourth proportional to 717.33, 1,074.57 and 473.12 is: 708.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.33 : 1,074.57 = 473.12 : x
  2. Step 2: Convert to fraction form
    717.33/1,074.57 = 473.12/x
  3. Step 3: Cross multiply
    717.33x = 1,074.57 × 473.12
  4. Step 4: Simplify right side
    717.33x = 508,395.19
  5. Step 5: Solve for x
    x = 508,395.19/717.33
  6. Step 6: Final answer
    x = 708.73

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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.