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Finding the Fourth Proportional to 400,715.52, 601,190.40 and 179,047.68

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Solution

The fourth proportional to 400,715.52, 601,190.40 and 179,047.68 is: 268,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,715.52 : 601,190.40 = 179,047.68 : x
  2. Step 2: Convert to fraction form
    400,715.52/601,190.40 = 179,047.68/x
  3. Step 3: Cross multiply
    400,715.52x = 601,190.40 × 179,047.68
  4. Step 4: Simplify right side
    400,715.52x = 107,641,746,358.27
  5. Step 5: Solve for x
    x = 107,641,746,358.27/400,715.52
  6. Step 6: Final answer
    x = 268,623.85

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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.