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Finding the Fourth Proportional to 568,113.35, 784,012.77 and 313,480.94

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Solution

The fourth proportional to 568,113.35, 784,012.77 and 313,480.94 is: 432,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,113.35 : 784,012.77 = 313,480.94 : x
  2. Step 2: Convert to fraction form
    568,113.35/784,012.77 = 313,480.94/x
  3. Step 3: Cross multiply
    568,113.35x = 784,012.77 × 313,480.94
  4. Step 4: Simplify right side
    568,113.35x = 245,773,056,191.54
  5. Step 5: Solve for x
    x = 245,773,056,191.54/568,113.35
  6. Step 6: Final answer
    x = 432,612.71

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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.