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Finding the Fourth Proportional to 376,425.27, 564,139.53 and 276,115.80

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Solution

The fourth proportional to 376,425.27, 564,139.53 and 276,115.80 is: 413,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,425.27 : 564,139.53 = 276,115.80 : x
  2. Step 2: Convert to fraction form
    376,425.27/564,139.53 = 276,115.80/x
  3. Step 3: Cross multiply
    376,425.27x = 564,139.53 × 276,115.80
  4. Step 4: Simplify right side
    376,425.27x = 155,767,837,637.57
  5. Step 5: Solve for x
    x = 155,767,837,637.57/376,425.27
  6. Step 6: Final answer
    x = 413,808.13

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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.