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Finding the Fourth Proportional to 397,445.93, 548,313.59 and 225,327.59

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Solution

The fourth proportional to 397,445.93, 548,313.59 and 225,327.59 is: 310,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,445.93 : 548,313.59 = 225,327.59 : x
  2. Step 2: Convert to fraction form
    397,445.93/548,313.59 = 225,327.59/x
  3. Step 3: Cross multiply
    397,445.93x = 548,313.59 × 225,327.59
  4. Step 4: Simplify right side
    397,445.93x = 123,550,178,672.31
  5. Step 5: Solve for x
    x = 123,550,178,672.31/397,445.93
  6. Step 6: Final answer
    x = 310,860.34

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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.