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Finding the Fourth Proportional to 559,947.70, 839,921.55 and 180,867.70

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Solution

The fourth proportional to 559,947.70, 839,921.55 and 180,867.70 is: 271,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,947.70 : 839,921.55 = 180,867.70 : x
  2. Step 2: Convert to fraction form
    559,947.70/839,921.55 = 180,867.70/x
  3. Step 3: Cross multiply
    559,947.70x = 839,921.55 × 180,867.70
  4. Step 4: Simplify right side
    559,947.70x = 151,914,678,928.94
  5. Step 5: Solve for x
    x = 151,914,678,928.94/559,947.70
  6. Step 6: Final answer
    x = 271,301.55

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Half scale
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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.