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Finding the Fourth Proportional to 471,340.45, 650,451.23 and 256,480.57

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Solution

The fourth proportional to 471,340.45, 650,451.23 and 256,480.57 is: 353,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,340.45 : 650,451.23 = 256,480.57 : x
  2. Step 2: Convert to fraction form
    471,340.45/650,451.23 = 256,480.57/x
  3. Step 3: Cross multiply
    471,340.45x = 650,451.23 × 256,480.57
  4. Step 4: Simplify right side
    471,340.45x = 166,828,100,945.20
  5. Step 5: Solve for x
    x = 166,828,100,945.20/471,340.45
  6. Step 6: Final answer
    x = 353,943.95

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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.