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Finding the Fourth Proportional to 3,192,402.74, 4,788,470.13 and 1,485,959.22

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Solution

The fourth proportional to 3,192,402.74, 4,788,470.13 and 1,485,959.22 is: 2,228,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192,402.74 : 4,788,470.13 = 1,485,959.22 : x
  2. Step 2: Convert to fraction form
    3,192,402.74/4,788,470.13 = 1,485,959.22/x
  3. Step 3: Cross multiply
    3,192,402.74x = 4,788,470.13 × 1,485,959.22
  4. Step 4: Simplify right side
    3,192,402.74x = 7,115,471,339,368.10
  5. Step 5: Solve for x
    x = 7,115,471,339,368.10/3,192,402.74
  6. Step 6: Final answer
    x = 2,228,876.47

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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.