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Finding the Fourth Proportional to 483,092.10, 724,638.15 and 305,799.30

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Solution

The fourth proportional to 483,092.10, 724,638.15 and 305,799.30 is: 458,698.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,092.10 : 724,638.15 = 305,799.30 : x
  2. Step 2: Convert to fraction form
    483,092.10/724,638.15 = 305,799.30/x
  3. Step 3: Cross multiply
    483,092.10x = 724,638.15 × 305,799.30
  4. Step 4: Simplify right side
    483,092.10x = 221,593,839,023.30
  5. Step 5: Solve for x
    x = 221,593,839,023.30/483,092.10
  6. Step 6: Final answer
    x = 458,698.95

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.