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Finding the Fourth Proportional to 397,019.44, 547,877.20 and 222,578.08

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Solution

The fourth proportional to 397,019.44, 547,877.20 and 222,578.08 is: 307,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,019.44 : 547,877.20 = 222,578.08 : x
  2. Step 2: Convert to fraction form
    397,019.44/547,877.20 = 222,578.08/x
  3. Step 3: Cross multiply
    397,019.44x = 547,877.20 × 222,578.08
  4. Step 4: Simplify right side
    397,019.44x = 121,945,455,251.78
  5. Step 5: Solve for x
    x = 121,945,455,251.78/397,019.44
  6. Step 6: Final answer
    x = 307,152.35

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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.