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Finding the Fourth Proportional to 986,523.52, 1,479,750.72 and 417,748

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Solution

The fourth proportional to 986,523.52, 1,479,750.72 and 417,748 is: 626,607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,523.52 : 1,479,750.72 = 417,748 : x
  2. Step 2: Convert to fraction form
    986,523.52/1,479,750.72 = 417,748/x
  3. Step 3: Cross multiply
    986,523.52x = 1,479,750.72 × 417,748
  4. Step 4: Simplify right side
    986,523.52x = 618,162,903,778.56
  5. Step 5: Solve for x
    x = 618,162,903,778.56/986,523.52
  6. Step 6: Final answer
    x = 626,607.37

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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.