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Finding the Fourth Proportional to 568,221.87, 784,125.63 and 313,567.59

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Solution

The fourth proportional to 568,221.87, 784,125.63 and 313,567.59 is: 432,711.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,221.87 : 784,125.63 = 313,567.59 : x
  2. Step 2: Convert to fraction form
    568,221.87/784,125.63 = 313,567.59/x
  3. Step 3: Cross multiply
    568,221.87x = 784,125.63 × 313,567.59
  4. Step 4: Simplify right side
    568,221.87x = 245,876,384,056.33
  5. Step 5: Solve for x
    x = 245,876,384,056.33/568,221.87
  6. Step 6: Final answer
    x = 432,711.93

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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.