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Finding the Fourth Proportional to 392,659.17, 588,918.63 and 104,472.46

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Solution

The fourth proportional to 392,659.17, 588,918.63 and 104,472.46 is: 156,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,659.17 : 588,918.63 = 104,472.46 : x
  2. Step 2: Convert to fraction form
    392,659.17/588,918.63 = 104,472.46/x
  3. Step 3: Cross multiply
    392,659.17x = 588,918.63 × 104,472.46
  4. Step 4: Simplify right side
    392,659.17x = 61,525,779,488.23
  5. Step 5: Solve for x
    x = 61,525,779,488.23/392,659.17
  6. Step 6: Final answer
    x = 156,690.04

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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.