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Finding the Fourth Proportional to 3,138,672.02, 4,703,623.20 and 1,696,245.74

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Solution

The fourth proportional to 3,138,672.02, 4,703,623.20 and 1,696,245.74 is: 2,541,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,672.02 : 4,703,623.20 = 1,696,245.74 : x
  2. Step 2: Convert to fraction form
    3,138,672.02/4,703,623.20 = 1,696,245.74/x
  3. Step 3: Cross multiply
    3,138,672.02x = 4,703,623.20 × 1,696,245.74
  4. Step 4: Simplify right side
    3,138,672.02x = 7,978,500,815,565.17
  5. Step 5: Solve for x
    x = 7,978,500,815,565.17/3,138,672.02
  6. Step 6: Final answer
    x = 2,541,998.90

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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.