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Finding the Fourth Proportional to 568,455.88, 784,448.55 and 313,801.60

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Solution

The fourth proportional to 568,455.88, 784,448.55 and 313,801.60 is: 433,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,455.88 : 784,448.55 = 313,801.60 : x
  2. Step 2: Convert to fraction form
    568,455.88/784,448.55 = 313,801.60/x
  3. Step 3: Cross multiply
    568,455.88x = 784,448.55 × 313,801.60
  4. Step 4: Simplify right side
    568,455.88x = 246,161,204,616.43
  5. Step 5: Solve for x
    x = 246,161,204,616.43/568,455.88
  6. Step 6: Final answer
    x = 433,034.85

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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.