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Finding the Fourth Proportional to 3,931,259.68, 5,425,361.68 and 2,361,871.52

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Solution

The fourth proportional to 3,931,259.68, 5,425,361.68 and 2,361,871.52 is: 3,259,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931,259.68 : 5,425,361.68 = 2,361,871.52 : x
  2. Step 2: Convert to fraction form
    3,931,259.68/5,425,361.68 = 2,361,871.52/x
  3. Step 3: Cross multiply
    3,931,259.68x = 5,425,361.68 × 2,361,871.52
  4. Step 4: Simplify right side
    3,931,259.68x = 12,814,007,237,691.35
  5. Step 5: Solve for x
    x = 12,814,007,237,691.35/3,931,259.68
  6. Step 6: Final answer
    x = 3,259,516.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.