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Finding the Fourth Proportional to 4,914,494.64, 7,372,744.20 and 2,785,529.52

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Solution

The fourth proportional to 4,914,494.64, 7,372,744.20 and 2,785,529.52 is: 4,178,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914,494.64 : 7,372,744.20 = 2,785,529.52 : x
  2. Step 2: Convert to fraction form
    4,914,494.64/7,372,744.20 = 2,785,529.52/x
  3. Step 3: Cross multiply
    4,914,494.64x = 7,372,744.20 × 2,785,529.52
  4. Step 4: Simplify right side
    4,914,494.64x = 20,536,996,612,508.79
  5. Step 5: Solve for x
    x = 20,536,996,612,508.79/4,914,494.64
  6. Step 6: Final answer
    x = 4,178,862.35

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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.