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Finding the Fourth Proportional to 397,253.98, 548,260.95 and 225,199.96

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Solution

The fourth proportional to 397,253.98, 548,260.95 and 225,199.96 is: 310,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,253.98 : 548,260.95 = 225,199.96 : x
  2. Step 2: Convert to fraction form
    397,253.98/548,260.95 = 225,199.96/x
  3. Step 3: Cross multiply
    397,253.98x = 548,260.95 × 225,199.96
  4. Step 4: Simplify right side
    397,253.98x = 123,468,344,009.56
  5. Step 5: Solve for x
    x = 123,468,344,009.56/397,253.98
  6. Step 6: Final answer
    x = 310,804.55

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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.