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Finding the Fourth Proportional to 612,169.40, 918,254.10 and 332,233.40

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Solution

The fourth proportional to 612,169.40, 918,254.10 and 332,233.40 is: 498,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,169.40 : 918,254.10 = 332,233.40 : x
  2. Step 2: Convert to fraction form
    612,169.40/918,254.10 = 332,233.40/x
  3. Step 3: Cross multiply
    612,169.40x = 918,254.10 × 332,233.40
  4. Step 4: Simplify right side
    612,169.40x = 305,074,681,706.94
  5. Step 5: Solve for x
    x = 305,074,681,706.94/612,169.40
  6. Step 6: Final answer
    x = 498,350.10

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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.