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Finding the Fourth Proportional to 702, 1,052.64 and 506.88

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Solution

The fourth proportional to 702, 1,052.64 and 506.88 is: 760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    702 : 1,052.64 = 506.88 : x
  2. Step 2: Convert to fraction form
    702/1,052.64 = 506.88/x
  3. Step 3: Cross multiply
    702x = 1,052.64 × 506.88
  4. Step 4: Simplify right side
    702x = 533,562.16
  5. Step 5: Solve for x
    x = 533,562.16/702
  6. Step 6: Final answer
    x = 760.06

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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.