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Finding the Fourth Proportional to 471,291.52, 707,046.56 and 155,729.28

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Solution

The fourth proportional to 471,291.52, 707,046.56 and 155,729.28 is: 233,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,291.52 : 707,046.56 = 155,729.28 : x
  2. Step 2: Convert to fraction form
    471,291.52/707,046.56 = 155,729.28/x
  3. Step 3: Cross multiply
    471,291.52x = 707,046.56 × 155,729.28
  4. Step 4: Simplify right side
    471,291.52x = 110,107,851,715.28
  5. Step 5: Solve for x
    x = 110,107,851,715.28/471,291.52
  6. Step 6: Final answer
    x = 233,630.03

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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.