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Finding the Fourth Proportional to 416,756.32, 575,126.52 and 225,769.79

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Solution

The fourth proportional to 416,756.32, 575,126.52 and 225,769.79 is: 311,563.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,756.32 : 575,126.52 = 225,769.79 : x
  2. Step 2: Convert to fraction form
    416,756.32/575,126.52 = 225,769.79/x
  3. Step 3: Cross multiply
    416,756.32x = 575,126.52 × 225,769.79
  4. Step 4: Simplify right side
    416,756.32x = 129,846,193,643.83
  5. Step 5: Solve for x
    x = 129,846,193,643.83/416,756.32
  6. Step 6: Final answer
    x = 311,563.83

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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.