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Finding the Fourth Proportional to 665,624.50, 998,436.75 and 222,392.50

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Solution

The fourth proportional to 665,624.50, 998,436.75 and 222,392.50 is: 333,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,624.50 : 998,436.75 = 222,392.50 : x
  2. Step 2: Convert to fraction form
    665,624.50/998,436.75 = 222,392.50/x
  3. Step 3: Cross multiply
    665,624.50x = 998,436.75 × 222,392.50
  4. Step 4: Simplify right side
    665,624.50x = 222,044,844,924.38
  5. Step 5: Solve for x
    x = 222,044,844,924.38/665,624.50
  6. Step 6: Final answer
    x = 333,588.75

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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.