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Finding the Fourth Proportional to 397,465.32, 548,499.54 and 225,416.04

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Solution

The fourth proportional to 397,465.32, 548,499.54 and 225,416.04 is: 311,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,465.32 : 548,499.54 = 225,416.04 : x
  2. Step 2: Convert to fraction form
    397,465.32/548,499.54 = 225,416.04/x
  3. Step 3: Cross multiply
    397,465.32x = 548,499.54 × 225,416.04
  4. Step 4: Simplify right side
    397,465.32x = 123,640,594,248.62
  5. Step 5: Solve for x
    x = 123,640,594,248.62/397,465.32
  6. Step 6: Final answer
    x = 311,072.66

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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.