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Finding the Fourth Proportional to 416,630.64, 574,950.72 and 225,644.28

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Solution

The fourth proportional to 416,630.64, 574,950.72 and 225,644.28 is: 311,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,630.64 : 574,950.72 = 225,644.28 : x
  2. Step 2: Convert to fraction form
    416,630.64/574,950.72 = 225,644.28/x
  3. Step 3: Cross multiply
    416,630.64x = 574,950.72 × 225,644.28
  4. Step 4: Simplify right side
    416,630.64x = 129,734,341,249.88
  5. Step 5: Solve for x
    x = 129,734,341,249.88/416,630.64
  6. Step 6: Final answer
    x = 311,389.34

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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.