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Finding the Fourth Proportional to 3,669,318.90, 5,503,978.35 and 2,234,428.20

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Solution

The fourth proportional to 3,669,318.90, 5,503,978.35 and 2,234,428.20 is: 3,351,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,318.90 : 5,503,978.35 = 2,234,428.20 : x
  2. Step 2: Convert to fraction form
    3,669,318.90/5,503,978.35 = 2,234,428.20/x
  3. Step 3: Cross multiply
    3,669,318.90x = 5,503,978.35 × 2,234,428.20
  4. Step 4: Simplify right side
    3,669,318.90x = 12,298,244,437,429.47
  5. Step 5: Solve for x
    x = 12,298,244,437,429.47/3,669,318.90
  6. Step 6: Final answer
    x = 3,351,642.30

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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.