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Finding the Fourth Proportional to 343,685.36, 474,067.68 and 248,332.16

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Solution

The fourth proportional to 343,685.36, 474,067.68 and 248,332.16 is: 342,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,685.36 : 474,067.68 = 248,332.16 : x
  2. Step 2: Convert to fraction form
    343,685.36/474,067.68 = 248,332.16/x
  3. Step 3: Cross multiply
    343,685.36x = 474,067.68 × 248,332.16
  4. Step 4: Simplify right side
    343,685.36x = 117,726,250,960.59
  5. Step 5: Solve for x
    x = 117,726,250,960.59/343,685.36
  6. Step 6: Final answer
    x = 342,540.78

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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.