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Finding the Fourth Proportional to 1,009.92, 1,514.04 and 702.38

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Solution

The fourth proportional to 1,009.92, 1,514.04 and 702.38 is: 1,052.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009.92 : 1,514.04 = 702.38 : x
  2. Step 2: Convert to fraction form
    1,009.92/1,514.04 = 702.38/x
  3. Step 3: Cross multiply
    1,009.92x = 1,514.04 × 702.38
  4. Step 4: Simplify right side
    1,009.92x = 1,063,431.42
  5. Step 5: Solve for x
    x = 1,063,431.42/1,009.92
  6. Step 6: Final answer
    x = 1,052.99

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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.