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Finding the Fourth Proportional to 827,604.97, 1,142,058.40 and 483,472.76

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Solution

The fourth proportional to 827,604.97, 1,142,058.40 and 483,472.76 is: 667,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,604.97 : 1,142,058.40 = 483,472.76 : x
  2. Step 2: Convert to fraction form
    827,604.97/1,142,058.40 = 483,472.76/x
  3. Step 3: Cross multiply
    827,604.97x = 1,142,058.40 × 483,472.76
  4. Step 4: Simplify right side
    827,604.97x = 552,154,126,729.18
  5. Step 5: Solve for x
    x = 552,154,126,729.18/827,604.97
  6. Step 6: Final answer
    x = 667,171.11

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Double scale
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1.5x scale

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.