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Finding the Fourth Proportional to 6,441,764.78, 8,889,851.87 and 3,792,134.14

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Solution

The fourth proportional to 6,441,764.78, 8,889,851.87 and 3,792,134.14 is: 5,233,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441,764.78 : 8,889,851.87 = 3,792,134.14 : x
  2. Step 2: Convert to fraction form
    6,441,764.78/8,889,851.87 = 3,792,134.14/x
  3. Step 3: Cross multiply
    6,441,764.78x = 8,889,851.87 × 3,792,134.14
  4. Step 4: Simplify right side
    6,441,764.78x = 33,711,510,756,809.17
  5. Step 5: Solve for x
    x = 33,711,510,756,809.17/6,441,764.78
  6. Step 6: Final answer
    x = 5,233,272.55

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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.