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Finding the Fourth Proportional to 1,936,652.10, 2,902,904.55 and 871,512.90

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Solution

The fourth proportional to 1,936,652.10, 2,902,904.55 and 871,512.90 is: 1,306,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936,652.10 : 2,902,904.55 = 871,512.90 : x
  2. Step 2: Convert to fraction form
    1,936,652.10/2,902,904.55 = 871,512.90/x
  3. Step 3: Cross multiply
    1,936,652.10x = 2,902,904.55 × 871,512.90
  4. Step 4: Simplify right side
    1,936,652.10x = 2,529,918,762,793.69
  5. Step 5: Solve for x
    x = 2,529,918,762,793.69/1,936,652.10
  6. Step 6: Final answer
    x = 1,306,336.21

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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.