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Finding the Fourth Proportional to 474,540.28, 654,865.66 and 259,680.40

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Solution

The fourth proportional to 474,540.28, 654,865.66 and 259,680.40 is: 358,358.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,540.28 : 654,865.66 = 259,680.40 : x
  2. Step 2: Convert to fraction form
    474,540.28/654,865.66 = 259,680.40/x
  3. Step 3: Cross multiply
    474,540.28x = 654,865.66 × 259,680.40
  4. Step 4: Simplify right side
    474,540.28x = 170,055,776,535.06
  5. Step 5: Solve for x
    x = 170,055,776,535.06/474,540.28
  6. Step 6: Final answer
    x = 358,358.99

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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.