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Finding the Fourth Proportional to 6,764,678.88, 9,335,689.20 and 4,468,814.88

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Solution

The fourth proportional to 6,764,678.88, 9,335,689.20 and 4,468,814.88 is: 6,167,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,764,678.88 : 9,335,689.20 = 4,468,814.88 : x
  2. Step 2: Convert to fraction form
    6,764,678.88/9,335,689.20 = 4,468,814.88/x
  3. Step 3: Cross multiply
    6,764,678.88x = 9,335,689.20 × 4,468,814.88
  4. Step 4: Simplify right side
    6,764,678.88x = 41,719,466,812,015.29
  5. Step 5: Solve for x
    x = 41,719,466,812,015.29/6,764,678.88
  6. Step 6: Final answer
    x = 6,167,250.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.