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Finding the Fourth Proportional to 3,192,398.98, 4,788,464.51 and 1,485,955.47

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Solution

The fourth proportional to 3,192,398.98, 4,788,464.51 and 1,485,955.47 is: 2,228,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192,398.98 : 4,788,464.51 = 1,485,955.47 : x
  2. Step 2: Convert to fraction form
    3,192,398.98/4,788,464.51 = 1,485,955.47/x
  3. Step 3: Cross multiply
    3,192,398.98x = 4,788,464.51 × 1,485,955.47
  4. Step 4: Simplify right side
    3,192,398.98x = 7,115,445,024,105.59
  5. Step 5: Solve for x
    x = 7,115,445,024,105.59/3,192,398.98
  6. Step 6: Final answer
    x = 2,228,870.85

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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.