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Finding the Fourth Proportional to 935,861.10, 1,403,791.65 and 836,133.90

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Solution

The fourth proportional to 935,861.10, 1,403,791.65 and 836,133.90 is: 1,254,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,861.10 : 1,403,791.65 = 836,133.90 : x
  2. Step 2: Convert to fraction form
    935,861.10/1,403,791.65 = 836,133.90/x
  3. Step 3: Cross multiply
    935,861.10x = 1,403,791.65 × 836,133.90
  4. Step 4: Simplify right side
    935,861.10x = 1,173,757,787,101.94
  5. Step 5: Solve for x
    x = 1,173,757,787,101.94/935,861.10
  6. Step 6: Final answer
    x = 1,254,200.85

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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.