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Finding the Fourth Proportional to 415,334.80, 623,002.20 and 341,523.55

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Solution

The fourth proportional to 415,334.80, 623,002.20 and 341,523.55 is: 512,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,334.80 : 623,002.20 = 341,523.55 : x
  2. Step 2: Convert to fraction form
    415,334.80/623,002.20 = 341,523.55/x
  3. Step 3: Cross multiply
    415,334.80x = 623,002.20 × 341,523.55
  4. Step 4: Simplify right side
    415,334.80x = 212,769,923,001.81
  5. Step 5: Solve for x
    x = 212,769,923,001.81/415,334.80
  6. Step 6: Final answer
    x = 512,285.33

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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.