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Finding the Fourth Proportional to 3,885,195.90, 5,827,793.85 and 1,225,803.90

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Solution

The fourth proportional to 3,885,195.90, 5,827,793.85 and 1,225,803.90 is: 1,838,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885,195.90 : 5,827,793.85 = 1,225,803.90 : x
  2. Step 2: Convert to fraction form
    3,885,195.90/5,827,793.85 = 1,225,803.90/x
  3. Step 3: Cross multiply
    3,885,195.90x = 5,827,793.85 × 1,225,803.90
  4. Step 4: Simplify right side
    3,885,195.90x = 7,143,732,429,726.01
  5. Step 5: Solve for x
    x = 7,143,732,429,726.01/3,885,195.90
  6. Step 6: Final answer
    x = 1,838,705.85

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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.