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Finding the Fourth Proportional to 3,690,748.40, 5,536,997.40 and 1,893,909.20

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Solution

The fourth proportional to 3,690,748.40, 5,536,997.40 and 1,893,909.20 is: 2,841,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690,748.40 : 5,536,997.40 = 1,893,909.20 : x
  2. Step 2: Convert to fraction form
    3,690,748.40/5,536,997.40 = 1,893,909.20/x
  3. Step 3: Cross multiply
    3,690,748.40x = 5,536,997.40 × 1,893,909.20
  4. Step 4: Simplify right side
    3,690,748.40x = 10,486,570,316,236.08
  5. Step 5: Solve for x
    x = 10,486,570,316,236.08/3,690,748.40
  6. Step 6: Final answer
    x = 2,841,312.70

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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.