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Finding the Fourth Proportional to 547,217.42, 820,952.55 and 173,240.42

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Solution

The fourth proportional to 547,217.42, 820,952.55 and 173,240.42 is: 259,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,217.42 : 820,952.55 = 173,240.42 : x
  2. Step 2: Convert to fraction form
    547,217.42/820,952.55 = 173,240.42/x
  3. Step 3: Cross multiply
    547,217.42x = 820,952.55 × 173,240.42
  4. Step 4: Simplify right side
    547,217.42x = 142,222,164,562.07
  5. Step 5: Solve for x
    x = 142,222,164,562.07/547,217.42
  6. Step 6: Final answer
    x = 259,900.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.