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Finding the Fourth Proportional to 568,369.44, 784,356.30 and 313,720.74

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Solution

The fourth proportional to 568,369.44, 784,356.30 and 313,720.74 is: 432,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,369.44 : 784,356.30 = 313,720.74 : x
  2. Step 2: Convert to fraction form
    568,369.44/784,356.30 = 313,720.74/x
  3. Step 3: Cross multiply
    568,369.44x = 784,356.30 × 313,720.74
  4. Step 4: Simplify right side
    568,369.44x = 246,068,838,859.66
  5. Step 5: Solve for x
    x = 246,068,838,859.66/568,369.44
  6. Step 6: Final answer
    x = 432,938.19

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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.