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Finding the Fourth Proportional to 996,480, 1,375,171.60 and 543,800.16

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Solution

The fourth proportional to 996,480, 1,375,171.60 and 543,800.16 is: 750,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,480 : 1,375,171.60 = 543,800.16 : x
  2. Step 2: Convert to fraction form
    996,480/1,375,171.60 = 543,800.16/x
  3. Step 3: Cross multiply
    996,480x = 1,375,171.60 × 543,800.16
  4. Step 4: Simplify right side
    996,480x = 747,818,536,107.46
  5. Step 5: Solve for x
    x = 747,818,536,107.46/996,480
  6. Step 6: Final answer
    x = 750,460.16

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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.