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Finding the Fourth Proportional to 2,694,652.20, 4,041,978.30 and 2,428,931.70

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Solution

The fourth proportional to 2,694,652.20, 4,041,978.30 and 2,428,931.70 is: 3,643,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694,652.20 : 4,041,978.30 = 2,428,931.70 : x
  2. Step 2: Convert to fraction form
    2,694,652.20/4,041,978.30 = 2,428,931.70/x
  3. Step 3: Cross multiply
    2,694,652.20x = 4,041,978.30 × 2,428,931.70
  4. Step 4: Simplify right side
    2,694,652.20x = 9,817,689,223,582.11
  5. Step 5: Solve for x
    x = 9,817,689,223,582.11/2,694,652.20
  6. Step 6: Final answer
    x = 3,643,397.55

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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.