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Finding the Fourth Proportional to 400,067.94, 551,833.65 and 256,600.74

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Solution

The fourth proportional to 400,067.94, 551,833.65 and 256,600.74 is: 353,942.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,067.94 : 551,833.65 = 256,600.74 : x
  2. Step 2: Convert to fraction form
    400,067.94/551,833.65 = 256,600.74/x
  3. Step 3: Cross multiply
    400,067.94x = 551,833.65 × 256,600.74
  4. Step 4: Simplify right side
    400,067.94x = 141,600,922,946.90
  5. Step 5: Solve for x
    x = 141,600,922,946.90/400,067.94
  6. Step 6: Final answer
    x = 353,942.19

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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.