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Finding the Fourth Proportional to 606,544.32, 836,863.20 and 391,693.44

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Solution

The fourth proportional to 606,544.32, 836,863.20 and 391,693.44 is: 540,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,544.32 : 836,863.20 = 391,693.44 : x
  2. Step 2: Convert to fraction form
    606,544.32/836,863.20 = 391,693.44/x
  3. Step 3: Cross multiply
    606,544.32x = 836,863.20 × 391,693.44
  4. Step 4: Simplify right side
    606,544.32x = 327,793,825,617.41
  5. Step 5: Solve for x
    x = 327,793,825,617.41/606,544.32
  6. Step 6: Final answer
    x = 540,428.48

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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.