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Finding the Fourth Proportional to 566,818.80, 782,245.67 and 312,170.19

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Solution

The fourth proportional to 566,818.80, 782,245.67 and 312,170.19 is: 430,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,818.80 : 782,245.67 = 312,170.19 : x
  2. Step 2: Convert to fraction form
    566,818.80/782,245.67 = 312,170.19/x
  3. Step 3: Cross multiply
    566,818.80x = 782,245.67 × 312,170.19
  4. Step 4: Simplify right side
    566,818.80x = 244,193,777,869.73
  5. Step 5: Solve for x
    x = 244,193,777,869.73/566,818.80
  6. Step 6: Final answer
    x = 430,814.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.