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Finding the Fourth Proportional to 625,063.64, 862,586.96 and 338,584.86

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Solution

The fourth proportional to 625,063.64, 862,586.96 and 338,584.86 is: 467,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,063.64 : 862,586.96 = 338,584.86 : x
  2. Step 2: Convert to fraction form
    625,063.64/862,586.96 = 338,584.86/x
  3. Step 3: Cross multiply
    625,063.64x = 862,586.96 × 338,584.86
  4. Step 4: Simplify right side
    625,063.64x = 292,058,883,396.50
  5. Step 5: Solve for x
    x = 292,058,883,396.50/625,063.64
  6. Step 6: Final answer
    x = 467,246.64

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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.