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Finding the Fourth Proportional to 827,961.20, 1,241,941.80 and 827,961.20

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Solution

The fourth proportional to 827,961.20, 1,241,941.80 and 827,961.20 is: 1,241,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,961.20 : 1,241,941.80 = 827,961.20 : x
  2. Step 2: Convert to fraction form
    827,961.20/1,241,941.80 = 827,961.20/x
  3. Step 3: Cross multiply
    827,961.20x = 1,241,941.80 × 827,961.20
  4. Step 4: Simplify right side
    827,961.20x = 1,028,279,623,058.16
  5. Step 5: Solve for x
    x = 1,028,279,623,058.16/827,961.20
  6. Step 6: Final answer
    x = 1,241,941.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.