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Finding the Fourth Proportional to 3,992,594.40, 5,988,891.60 and 1,152,799.20

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Solution

The fourth proportional to 3,992,594.40, 5,988,891.60 and 1,152,799.20 is: 1,729,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992,594.40 : 5,988,891.60 = 1,152,799.20 : x
  2. Step 2: Convert to fraction form
    3,992,594.40/5,988,891.60 = 1,152,799.20/x
  3. Step 3: Cross multiply
    3,992,594.40x = 5,988,891.60 × 1,152,799.20
  4. Step 4: Simplify right side
    3,992,594.40x = 6,903,989,445,366.72
  5. Step 5: Solve for x
    x = 6,903,989,445,366.72/3,992,594.40
  6. Step 6: Final answer
    x = 1,729,198.80

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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.