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Finding the Fourth Proportional to 561,935.30, 842,902.95 and 162,589.10

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Solution

The fourth proportional to 561,935.30, 842,902.95 and 162,589.10 is: 243,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,935.30 : 842,902.95 = 162,589.10 : x
  2. Step 2: Convert to fraction form
    561,935.30/842,902.95 = 162,589.10/x
  3. Step 3: Cross multiply
    561,935.30x = 842,902.95 × 162,589.10
  4. Step 4: Simplify right side
    561,935.30x = 137,046,832,027.85
  5. Step 5: Solve for x
    x = 137,046,832,027.85/561,935.30
  6. Step 6: Final answer
    x = 243,883.65

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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.