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Finding the Fourth Proportional to 568,145.90, 785,080.70 and 540,469.41

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Solution

The fourth proportional to 568,145.90, 785,080.70 and 540,469.41 is: 746,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,145.90 : 785,080.70 = 540,469.41 : x
  2. Step 2: Convert to fraction form
    568,145.90/785,080.70 = 540,469.41/x
  3. Step 3: Cross multiply
    568,145.90x = 785,080.70 × 540,469.41
  4. Step 4: Simplify right side
    568,145.90x = 424,312,100,029.04
  5. Step 5: Solve for x
    x = 424,312,100,029.04/568,145.90
  6. Step 6: Final answer
    x = 746,836.51

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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.