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Finding the Fourth Proportional to 374,421.62, 516,702.09 and 204,655.73

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Solution

The fourth proportional to 374,421.62, 516,702.09 and 204,655.73 is: 282,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,421.62 : 516,702.09 = 204,655.73 : x
  2. Step 2: Convert to fraction form
    374,421.62/516,702.09 = 204,655.73/x
  3. Step 3: Cross multiply
    374,421.62x = 516,702.09 × 204,655.73
  4. Step 4: Simplify right side
    374,421.62x = 105,746,043,421.48
  5. Step 5: Solve for x
    x = 105,746,043,421.48/374,421.62
  6. Step 6: Final answer
    x = 282,425.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.