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Finding the Fourth Proportional to 1,134.92, 1,702.88 and 476.97

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Solution

The fourth proportional to 1,134.92, 1,702.88 and 476.97 is: 715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.92 : 1,702.88 = 476.97 : x
  2. Step 2: Convert to fraction form
    1,134.92/1,702.88 = 476.97/x
  3. Step 3: Cross multiply
    1,134.92x = 1,702.88 × 476.97
  4. Step 4: Simplify right side
    1,134.92x = 812,220.29
  5. Step 5: Solve for x
    x = 812,220.29/1,134.92
  6. Step 6: Final answer
    x = 715.66

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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.