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Finding the Fourth Proportional to 548,511.75, 819,122.54 and 542,574.04

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Solution

The fourth proportional to 548,511.75, 819,122.54 and 542,574.04 is: 810,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,511.75 : 819,122.54 = 542,574.04 : x
  2. Step 2: Convert to fraction form
    548,511.75/819,122.54 = 542,574.04/x
  3. Step 3: Cross multiply
    548,511.75x = 819,122.54 × 542,574.04
  4. Step 4: Simplify right side
    548,511.75x = 444,434,625,782.86
  5. Step 5: Solve for x
    x = 444,434,625,782.86/548,511.75
  6. Step 6: Final answer
    x = 810,255.43

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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.