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Finding the Fourth Proportional to 1,766,425.56, 2,437,660.34 and 991,948.92

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Solution

The fourth proportional to 1,766,425.56, 2,437,660.34 and 991,948.92 is: 1,368,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,425.56 : 2,437,660.34 = 991,948.92 : x
  2. Step 2: Convert to fraction form
    1,766,425.56/2,437,660.34 = 991,948.92/x
  3. Step 3: Cross multiply
    1,766,425.56x = 2,437,660.34 × 991,948.92
  4. Step 4: Simplify right side
    1,766,425.56x = 2,418,034,541,589.83
  5. Step 5: Solve for x
    x = 2,418,034,541,589.83/1,766,425.56
  6. Step 6: Final answer
    x = 1,368,885.62

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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.