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Finding the Fourth Proportional to 400,708.28, 601,070.22 and 187,358.33

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Solution

The fourth proportional to 400,708.28, 601,070.22 and 187,358.33 is: 281,041.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,708.28 : 601,070.22 = 187,358.33 : x
  2. Step 2: Convert to fraction form
    400,708.28/601,070.22 = 187,358.33/x
  3. Step 3: Cross multiply
    400,708.28x = 601,070.22 × 187,358.33
  4. Step 4: Simplify right side
    400,708.28x = 112,615,514,134.61
  5. Step 5: Solve for x
    x = 112,615,514,134.61/400,708.28
  6. Step 6: Final answer
    x = 281,041.14

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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.