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Finding the Fourth Proportional to 416,239.68, 574,410.72 and 225,253.08

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Solution

The fourth proportional to 416,239.68, 574,410.72 and 225,253.08 is: 310,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,239.68 : 574,410.72 = 225,253.08 : x
  2. Step 2: Convert to fraction form
    416,239.68/574,410.72 = 225,253.08/x
  3. Step 3: Cross multiply
    416,239.68x = 574,410.72 × 225,253.08
  4. Step 4: Simplify right side
    416,239.68x = 129,387,783,865.02
  5. Step 5: Solve for x
    x = 129,387,783,865.02/416,239.68
  6. Step 6: Final answer
    x = 310,849.23

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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.