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Finding the Fourth Proportional to 568,416.40, 784,414.50 and 313,767.52

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Solution

The fourth proportional to 568,416.40, 784,414.50 and 313,767.52 is: 432,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,416.40 : 784,414.50 = 313,767.52 : x
  2. Step 2: Convert to fraction form
    568,416.40/784,414.50 = 313,767.52/x
  3. Step 3: Cross multiply
    568,416.40x = 784,414.50 × 313,767.52
  4. Step 4: Simplify right side
    568,416.40x = 246,123,792,317.04
  5. Step 5: Solve for x
    x = 246,123,792,317.04/568,416.40
  6. Step 6: Final answer
    x = 432,999.10

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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.