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Finding the Fourth Proportional to 374,818.61, 517,262.13 and 205,052.73

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Solution

The fourth proportional to 374,818.61, 517,262.13 and 205,052.73 is: 282,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,818.61 : 517,262.13 = 205,052.73 : x
  2. Step 2: Convert to fraction form
    374,818.61/517,262.13 = 205,052.73/x
  3. Step 3: Cross multiply
    374,818.61x = 517,262.13 × 205,052.73
  4. Step 4: Simplify right side
    374,818.61x = 106,066,011,882.12
  5. Step 5: Solve for x
    x = 106,066,011,882.12/374,818.61
  6. Step 6: Final answer
    x = 282,979.58

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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.