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Finding the Fourth Proportional to 416,986.64, 575,441.28 and 225,999.92

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Solution

The fourth proportional to 416,986.64, 575,441.28 and 225,999.92 is: 311,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,986.64 : 575,441.28 = 225,999.92 : x
  2. Step 2: Convert to fraction form
    416,986.64/575,441.28 = 225,999.92/x
  3. Step 3: Cross multiply
    416,986.64x = 575,441.28 × 225,999.92
  4. Step 4: Simplify right side
    416,986.64x = 130,049,683,244.70
  5. Step 5: Solve for x
    x = 130,049,683,244.70/416,986.64
  6. Step 6: Final answer
    x = 311,879.74

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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.