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Finding the Fourth Proportional to 6,458,507.53, 8,921,805.65 and 6,118,385.29

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Solution

The fourth proportional to 6,458,507.53, 8,921,805.65 and 6,118,385.29 is: 8,451,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458,507.53 : 8,921,805.65 = 6,118,385.29 : x
  2. Step 2: Convert to fraction form
    6,458,507.53/8,921,805.65 = 6,118,385.29/x
  3. Step 3: Cross multiply
    6,458,507.53x = 8,921,805.65 × 6,118,385.29
  4. Step 4: Simplify right side
    6,458,507.53x = 54,587,044,419,246.39
  5. Step 5: Solve for x
    x = 54,587,044,419,246.39/6,458,507.53
  6. Step 6: Final answer
    x = 8,451,959.56

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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.