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Finding the Fourth Proportional to 996,325, 1,374,927.70 and 543,616

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Solution

The fourth proportional to 996,325, 1,374,927.70 and 543,616 is: 750,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,325 : 1,374,927.70 = 543,616 : x
  2. Step 2: Convert to fraction form
    996,325/1,374,927.70 = 543,616/x
  3. Step 3: Cross multiply
    996,325x = 1,374,927.70 × 543,616
  4. Step 4: Simplify right side
    996,325x = 747,432,696,563.20
  5. Step 5: Solve for x
    x = 747,432,696,563.20/996,325
  6. Step 6: Final answer
    x = 750,189.64

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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.