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Finding the Fourth Proportional to 984,691.13, 1,358,873.78 and 531,982.13

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Solution

The fourth proportional to 984,691.13, 1,358,873.78 and 531,982.13 is: 734,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,691.13 : 1,358,873.78 = 531,982.13 : x
  2. Step 2: Convert to fraction form
    984,691.13/1,358,873.78 = 531,982.13/x
  3. Step 3: Cross multiply
    984,691.13x = 1,358,873.78 × 531,982.13
  4. Step 4: Simplify right side
    984,691.13x = 722,896,558,431.27
  5. Step 5: Solve for x
    x = 722,896,558,431.27/984,691.13
  6. Step 6: Final answer
    x = 734,135.34

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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.