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Finding the Fourth Proportional to 410,808.60, 616,212.90 and 252,523.80

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Solution

The fourth proportional to 410,808.60, 616,212.90 and 252,523.80 is: 378,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,808.60 : 616,212.90 = 252,523.80 : x
  2. Step 2: Convert to fraction form
    410,808.60/616,212.90 = 252,523.80/x
  3. Step 3: Cross multiply
    410,808.60x = 616,212.90 × 252,523.80
  4. Step 4: Simplify right side
    410,808.60x = 155,608,423,117.02
  5. Step 5: Solve for x
    x = 155,608,423,117.02/410,808.60
  6. Step 6: Final answer
    x = 378,785.70

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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.