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Finding the Fourth Proportional to 996,492, 1,375,188.12 and 543,812.16

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Solution

The fourth proportional to 996,492, 1,375,188.12 and 543,812.16 is: 750,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,492 : 1,375,188.12 = 543,812.16 : x
  2. Step 2: Convert to fraction form
    996,492/1,375,188.12 = 543,812.16/x
  3. Step 3: Cross multiply
    996,492x = 1,375,188.12 × 543,812.16
  4. Step 4: Simplify right side
    996,492x = 747,844,021,943.54
  5. Step 5: Solve for x
    x = 747,844,021,943.54/996,492
  6. Step 6: Final answer
    x = 750,476.69

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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.