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Finding the Fourth Proportional to 3,266,291.92, 4,899,121.08 and 991,836.04

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Solution

The fourth proportional to 3,266,291.92, 4,899,121.08 and 991,836.04 is: 1,487,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266,291.92 : 4,899,121.08 = 991,836.04 : x
  2. Step 2: Convert to fraction form
    3,266,291.92/4,899,121.08 = 991,836.04/x
  3. Step 3: Cross multiply
    3,266,291.92x = 4,899,121.08 × 991,836.04
  4. Step 4: Simplify right side
    3,266,291.92x = 4,859,124,851,467.72
  5. Step 5: Solve for x
    x = 4,859,124,851,467.72/3,266,291.92
  6. Step 6: Final answer
    x = 1,487,657.86

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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.