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Finding the Fourth Proportional to 423,494.52, 635,459.46 and 281,437.93

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Solution

The fourth proportional to 423,494.52, 635,459.46 and 281,437.93 is: 422,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,494.52 : 635,459.46 = 281,437.93 : x
  2. Step 2: Convert to fraction form
    423,494.52/635,459.46 = 281,437.93/x
  3. Step 3: Cross multiply
    423,494.52x = 635,459.46 × 281,437.93
  4. Step 4: Simplify right side
    423,494.52x = 178,842,395,021.32
  5. Step 5: Solve for x
    x = 178,842,395,021.32/423,494.52
  6. Step 6: Final answer
    x = 422,301.56

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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.