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Finding the Fourth Proportional to 582,912.20, 874,368.30 and 188,928.20

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Solution

The fourth proportional to 582,912.20, 874,368.30 and 188,928.20 is: 283,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,912.20 : 874,368.30 = 188,928.20 : x
  2. Step 2: Convert to fraction form
    582,912.20/874,368.30 = 188,928.20/x
  3. Step 3: Cross multiply
    582,912.20x = 874,368.30 × 188,928.20
  4. Step 4: Simplify right side
    582,912.20x = 165,192,829,056.06
  5. Step 5: Solve for x
    x = 165,192,829,056.06/582,912.20
  6. Step 6: Final answer
    x = 283,392.30

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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.