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Finding the Fourth Proportional to 865,168.62, 1,193,759.31 and 483,136.62

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Solution

The fourth proportional to 865,168.62, 1,193,759.31 and 483,136.62 is: 666,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,168.62 : 1,193,759.31 = 483,136.62 : x
  2. Step 2: Convert to fraction form
    865,168.62/1,193,759.31 = 483,136.62/x
  3. Step 3: Cross multiply
    865,168.62x = 1,193,759.31 × 483,136.62
  4. Step 4: Simplify right side
    865,168.62x = 576,748,838,126.93
  5. Step 5: Solve for x
    x = 576,748,838,126.93/865,168.62
  6. Step 6: Final answer
    x = 666,631.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.