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Finding the Fourth Proportional to 719,013.68, 992,598.38 and 447,169.12

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Solution

The fourth proportional to 719,013.68, 992,598.38 and 447,169.12 is: 617,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,013.68 : 992,598.38 = 447,169.12 : x
  2. Step 2: Convert to fraction form
    719,013.68/992,598.38 = 447,169.12/x
  3. Step 3: Cross multiply
    719,013.68x = 992,598.38 × 447,169.12
  4. Step 4: Simplify right side
    719,013.68x = 443,859,344,098.03
  5. Step 5: Solve for x
    x = 443,859,344,098.03/719,013.68
  6. Step 6: Final answer
    x = 617,316.97

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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.