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Finding the Fourth Proportional to 416,406.37, 574,640.67 and 225,419.62

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Solution

The fourth proportional to 416,406.37, 574,640.67 and 225,419.62 is: 311,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,406.37 : 574,640.67 = 225,419.62 : x
  2. Step 2: Convert to fraction form
    416,406.37/574,640.67 = 225,419.62/x
  3. Step 3: Cross multiply
    416,406.37x = 574,640.67 × 225,419.62
  4. Step 4: Simplify right side
    416,406.37x = 129,535,281,467.95
  5. Step 5: Solve for x
    x = 129,535,281,467.95/416,406.37
  6. Step 6: Final answer
    x = 311,079.01

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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.