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Finding the Fourth Proportional to 3,583,761.60, 5,375,642.40 and 3,191,851.20

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Solution

The fourth proportional to 3,583,761.60, 5,375,642.40 and 3,191,851.20 is: 4,787,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583,761.60 : 5,375,642.40 = 3,191,851.20 : x
  2. Step 2: Convert to fraction form
    3,583,761.60/5,375,642.40 = 3,191,851.20/x
  3. Step 3: Cross multiply
    3,583,761.60x = 5,375,642.40 × 3,191,851.20
  4. Step 4: Simplify right side
    3,583,761.60x = 17,158,250,645,210.88
  5. Step 5: Solve for x
    x = 17,158,250,645,210.88/3,583,761.60
  6. Step 6: Final answer
    x = 4,787,776.80

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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.