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Finding the Fourth Proportional to 996,464, 1,375,149.48 and 543,784.16

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Solution

The fourth proportional to 996,464, 1,375,149.48 and 543,784.16 is: 750,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,464 : 1,375,149.48 = 543,784.16 : x
  2. Step 2: Convert to fraction form
    996,464/1,375,149.48 = 543,784.16/x
  3. Step 3: Cross multiply
    996,464x = 1,375,149.48 × 543,784.16
  4. Step 4: Simplify right side
    996,464x = 747,784,504,856.24
  5. Step 5: Solve for x
    x = 747,784,504,856.24/996,464
  6. Step 6: Final answer
    x = 750,438.05

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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.