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Finding the Fourth Proportional to 996,465, 1,375,150.86 and 543,785.16

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Solution

The fourth proportional to 996,465, 1,375,150.86 and 543,785.16 is: 750,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,465 : 1,375,150.86 = 543,785.16 : x
  2. Step 2: Convert to fraction form
    996,465/1,375,150.86 = 543,785.16/x
  3. Step 3: Cross multiply
    996,465x = 1,375,150.86 × 543,785.16
  4. Step 4: Simplify right side
    996,465x = 747,786,630,429.24
  5. Step 5: Solve for x
    x = 747,786,630,429.24/996,465
  6. Step 6: Final answer
    x = 750,439.43

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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.