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Finding the Fourth Proportional to 613,368.10, 920,052.15 and 192,643.30

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Solution

The fourth proportional to 613,368.10, 920,052.15 and 192,643.30 is: 288,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,368.10 : 920,052.15 = 192,643.30 : x
  2. Step 2: Convert to fraction form
    613,368.10/920,052.15 = 192,643.30/x
  3. Step 3: Cross multiply
    613,368.10x = 920,052.15 × 192,643.30
  4. Step 4: Simplify right side
    613,368.10x = 177,241,882,348.10
  5. Step 5: Solve for x
    x = 177,241,882,348.10/613,368.10
  6. Step 6: Final answer
    x = 288,964.95

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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.