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Finding the Fourth Proportional to 416,615.49, 574,928.84 and 225,629.64

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Solution

The fourth proportional to 416,615.49, 574,928.84 and 225,629.64 is: 311,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,615.49 : 574,928.84 = 225,629.64 : x
  2. Step 2: Convert to fraction form
    416,615.49/574,928.84 = 225,629.64/x
  3. Step 3: Cross multiply
    416,615.49x = 574,928.84 × 225,629.64
  4. Step 4: Simplify right side
    416,615.49x = 129,720,986,066.67
  5. Step 5: Solve for x
    x = 129,720,986,066.67/416,615.49
  6. Step 6: Final answer
    x = 311,368.61

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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.