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Finding the Fourth Proportional to 1,169.35, 1,753.15 and 707.04

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Solution

The fourth proportional to 1,169.35, 1,753.15 and 707.04 is: 1,060.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.35 : 1,753.15 = 707.04 : x
  2. Step 2: Convert to fraction form
    1,169.35/1,753.15 = 707.04/x
  3. Step 3: Cross multiply
    1,169.35x = 1,753.15 × 707.04
  4. Step 4: Simplify right side
    1,169.35x = 1,239,543.79
  5. Step 5: Solve for x
    x = 1,239,543.79/1,169.35
  6. Step 6: Final answer
    x = 1,060.03

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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.