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Finding the Fourth Proportional to 827,310.80, 1,240,966.24 and 827,310.80

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Solution

The fourth proportional to 827,310.80, 1,240,966.24 and 827,310.80 is: 1,240,966.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,310.80 : 1,240,966.24 = 827,310.80 : x
  2. Step 2: Convert to fraction form
    827,310.80/1,240,966.24 = 827,310.80/x
  3. Step 3: Cross multiply
    827,310.80x = 1,240,966.24 × 827,310.80
  4. Step 4: Simplify right side
    827,310.80x = 1,026,664,772,787.39
  5. Step 5: Solve for x
    x = 1,026,664,772,787.39/827,310.80
  6. Step 6: Final answer
    x = 1,240,966.24

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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.