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Finding the Fourth Proportional to 416,421.10, 574,660.47 and 225,434.44

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Solution

The fourth proportional to 416,421.10, 574,660.47 and 225,434.44 is: 311,099.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,421.10 : 574,660.47 = 225,434.44 : x
  2. Step 2: Convert to fraction form
    416,421.10/574,660.47 = 225,434.44/x
  3. Step 3: Cross multiply
    416,421.10x = 574,660.47 × 225,434.44
  4. Step 4: Simplify right side
    416,421.10x = 129,548,261,244.59
  5. Step 5: Solve for x
    x = 129,548,261,244.59/416,421.10
  6. Step 6: Final answer
    x = 311,099.18

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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.