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Finding the Fourth Proportional to 6,425,494.50, 8,867,130.76 and 3,485,304.29

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Solution

The fourth proportional to 6,425,494.50, 8,867,130.76 and 3,485,304.29 is: 4,809,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425,494.50 : 8,867,130.76 = 3,485,304.29 : x
  2. Step 2: Convert to fraction form
    6,425,494.50/8,867,130.76 = 3,485,304.29/x
  3. Step 3: Cross multiply
    6,425,494.50x = 8,867,130.76 × 3,485,304.29
  4. Step 4: Simplify right side
    6,425,494.50x = 30,904,648,824,770.05
  5. Step 5: Solve for x
    x = 30,904,648,824,770.05/6,425,494.50
  6. Step 6: Final answer
    x = 4,809,691.89

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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.