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Finding the Fourth Proportional to 559,937.40, 839,906.10 and 185,960.40

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Solution

The fourth proportional to 559,937.40, 839,906.10 and 185,960.40 is: 278,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,937.40 : 839,906.10 = 185,960.40 : x
  2. Step 2: Convert to fraction form
    559,937.40/839,906.10 = 185,960.40/x
  3. Step 3: Cross multiply
    559,937.40x = 839,906.10 × 185,960.40
  4. Step 4: Simplify right side
    559,937.40x = 156,189,274,318.44
  5. Step 5: Solve for x
    x = 156,189,274,318.44/559,937.40
  6. Step 6: Final answer
    x = 278,940.60

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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.