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Finding the Fourth Proportional to 859,538.04, 1,287,207 and 741,964.92

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Solution

The fourth proportional to 859,538.04, 1,287,207 and 741,964.92 is: 1,111,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,538.04 : 1,287,207 = 741,964.92 : x
  2. Step 2: Convert to fraction form
    859,538.04/1,287,207 = 741,964.92/x
  3. Step 3: Cross multiply
    859,538.04x = 1,287,207 × 741,964.92
  4. Step 4: Simplify right side
    859,538.04x = 955,062,438,778.44
  5. Step 5: Solve for x
    x = 955,062,438,778.44/859,538.04
  6. Step 6: Final answer
    x = 1,111,134.58

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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.