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Finding the Fourth Proportional to 608,319.60, 912,479.40 and 165,087.60

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Solution

The fourth proportional to 608,319.60, 912,479.40 and 165,087.60 is: 247,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,319.60 : 912,479.40 = 165,087.60 : x
  2. Step 2: Convert to fraction form
    608,319.60/912,479.40 = 165,087.60/x
  3. Step 3: Cross multiply
    608,319.60x = 912,479.40 × 165,087.60
  4. Step 4: Simplify right side
    608,319.60x = 150,639,034,195.44
  5. Step 5: Solve for x
    x = 150,639,034,195.44/608,319.60
  6. Step 6: Final answer
    x = 247,631.40

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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.