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Finding the Fourth Proportional to 574,282.20, 855,530 and 548,374.48

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Solution

The fourth proportional to 574,282.20, 855,530 and 548,374.48 is: 816,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,282.20 : 855,530 = 548,374.48 : x
  2. Step 2: Convert to fraction form
    574,282.20/855,530 = 548,374.48/x
  3. Step 3: Cross multiply
    574,282.20x = 855,530 × 548,374.48
  4. Step 4: Simplify right side
    574,282.20x = 469,150,818,874.40
  5. Step 5: Solve for x
    x = 469,150,818,874.40/574,282.20
  6. Step 6: Final answer
    x = 816,934.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.