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Finding the Fourth Proportional to 996,462, 1,375,146.72 and 543,782.16

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Solution

The fourth proportional to 996,462, 1,375,146.72 and 543,782.16 is: 750,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,462 : 1,375,146.72 = 543,782.16 : x
  2. Step 2: Convert to fraction form
    996,462/1,375,146.72 = 543,782.16/x
  3. Step 3: Cross multiply
    996,462x = 1,375,146.72 × 543,782.16
  4. Step 4: Simplify right side
    996,462x = 747,780,253,718.52
  5. Step 5: Solve for x
    x = 747,780,253,718.52/996,462
  6. Step 6: Final answer
    x = 750,435.29

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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.