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Finding the Fourth Proportional to 3,741,792.80, 5,604,394.80 and 2,897,607.20

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Solution

The fourth proportional to 3,741,792.80, 5,604,394.80 and 2,897,607.20 is: 4,339,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741,792.80 : 5,604,394.80 = 2,897,607.20 : x
  2. Step 2: Convert to fraction form
    3,741,792.80/5,604,394.80 = 2,897,607.20/x
  3. Step 3: Cross multiply
    3,741,792.80x = 5,604,394.80 × 2,897,607.20
  4. Step 4: Simplify right side
    3,741,792.80x = 16,239,334,724,122.56
  5. Step 5: Solve for x
    x = 16,239,334,724,122.56/3,741,792.80
  6. Step 6: Final answer
    x = 4,339,987.70

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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.