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Finding the Fourth Proportional to 665,368.40, 998,052.60 and 192,069.20

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Solution

The fourth proportional to 665,368.40, 998,052.60 and 192,069.20 is: 288,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,368.40 : 998,052.60 = 192,069.20 : x
  2. Step 2: Convert to fraction form
    665,368.40/998,052.60 = 192,069.20/x
  3. Step 3: Cross multiply
    665,368.40x = 998,052.60 × 192,069.20
  4. Step 4: Simplify right side
    665,368.40x = 191,695,164,439.92
  5. Step 5: Solve for x
    x = 191,695,164,439.92/665,368.40
  6. Step 6: Final answer
    x = 288,103.80

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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.