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Finding the Fourth Proportional to 612,270.96, 844,896.60 and 344,016.24

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Solution

The fourth proportional to 612,270.96, 844,896.60 and 344,016.24 is: 474,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,270.96 : 844,896.60 = 344,016.24 : x
  2. Step 2: Convert to fraction form
    612,270.96/844,896.60 = 344,016.24/x
  3. Step 3: Cross multiply
    612,270.96x = 844,896.60 × 344,016.24
  4. Step 4: Simplify right side
    612,270.96x = 290,658,151,520.78
  5. Step 5: Solve for x
    x = 290,658,151,520.78/612,270.96
  6. Step 6: Final answer
    x = 474,721.44

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Double scale
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Similar ratio
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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.