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Finding the Fourth Proportional to 416,661.07, 574,993.20 and 225,674.50

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Solution

The fourth proportional to 416,661.07, 574,993.20 and 225,674.50 is: 311,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,661.07 : 574,993.20 = 225,674.50 : x
  2. Step 2: Convert to fraction form
    416,661.07/574,993.20 = 225,674.50/x
  3. Step 3: Cross multiply
    416,661.07x = 574,993.20 × 225,674.50
  4. Step 4: Simplify right side
    416,661.07x = 129,761,302,913.40
  5. Step 5: Solve for x
    x = 129,761,302,913.40/416,661.07
  6. Step 6: Final answer
    x = 311,431.31

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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.