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Finding the Fourth Proportional to 5,462,679.90, 8,194,019.85 and 1,418,835.90

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Solution

The fourth proportional to 5,462,679.90, 8,194,019.85 and 1,418,835.90 is: 2,128,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,462,679.90 : 8,194,019.85 = 1,418,835.90 : x
  2. Step 2: Convert to fraction form
    5,462,679.90/8,194,019.85 = 1,418,835.90/x
  3. Step 3: Cross multiply
    5,462,679.90x = 8,194,019.85 × 1,418,835.90
  4. Step 4: Simplify right side
    5,462,679.90x = 11,625,969,528,492.61
  5. Step 5: Solve for x
    x = 11,625,969,528,492.61/5,462,679.90
  6. Step 6: Final answer
    x = 2,128,253.85

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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.