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Finding the Fourth Proportional to 559,928.80, 839,893.20 and 185,951.80

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Solution

The fourth proportional to 559,928.80, 839,893.20 and 185,951.80 is: 278,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,928.80 : 839,893.20 = 185,951.80 : x
  2. Step 2: Convert to fraction form
    559,928.80/839,893.20 = 185,951.80/x
  3. Step 3: Cross multiply
    559,928.80x = 839,893.20 × 185,951.80
  4. Step 4: Simplify right side
    559,928.80x = 156,179,652,347.76
  5. Step 5: Solve for x
    x = 156,179,652,347.76/559,928.80
  6. Step 6: Final answer
    x = 278,927.70

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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.