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Finding the Fourth Proportional to 2,569,728.20, 3,854,592.30 and 1,375,334.60

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Solution

The fourth proportional to 2,569,728.20, 3,854,592.30 and 1,375,334.60 is: 2,063,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569,728.20 : 3,854,592.30 = 1,375,334.60 : x
  2. Step 2: Convert to fraction form
    2,569,728.20/3,854,592.30 = 1,375,334.60/x
  3. Step 3: Cross multiply
    2,569,728.20x = 3,854,592.30 × 1,375,334.60
  4. Step 4: Simplify right side
    2,569,728.20x = 5,301,354,159,083.58
  5. Step 5: Solve for x
    x = 5,301,354,159,083.58/2,569,728.20
  6. Step 6: Final answer
    x = 2,063,001.90

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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.