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Finding the Fourth Proportional to 416,969.28, 575,402.13 and 225,978.57

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Solution

The fourth proportional to 416,969.28, 575,402.13 and 225,978.57 is: 311,842.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,969.28 : 575,402.13 = 225,978.57 : x
  2. Step 2: Convert to fraction form
    416,969.28/575,402.13 = 225,978.57/x
  3. Step 3: Cross multiply
    416,969.28x = 575,402.13 × 225,978.57
  4. Step 4: Simplify right side
    416,969.28x = 130,028,550,512.35
  5. Step 5: Solve for x
    x = 130,028,550,512.35/416,969.28
  6. Step 6: Final answer
    x = 311,842.04

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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.