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Finding the Fourth Proportional to 586,187.28, 808,943.88 and 344,475.12

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Solution

The fourth proportional to 586,187.28, 808,943.88 and 344,475.12 is: 475,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,187.28 : 808,943.88 = 344,475.12 : x
  2. Step 2: Convert to fraction form
    586,187.28/808,943.88 = 344,475.12/x
  3. Step 3: Cross multiply
    586,187.28x = 808,943.88 × 344,475.12
  4. Step 4: Simplify right side
    586,187.28x = 278,661,040,136.27
  5. Step 5: Solve for x
    x = 278,661,040,136.27/586,187.28
  6. Step 6: Final answer
    x = 475,378.86

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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.