Home / 286,005.94-394,687.09-156,946.57

Finding the Fourth Proportional to 286,005.94, 394,687.09 and 156,946.57

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Solution

The fourth proportional to 286,005.94, 394,687.09 and 156,946.57 is: 216,585.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,005.94 : 394,687.09 = 156,946.57 : x
  2. Step 2: Convert to fraction form
    286,005.94/394,687.09 = 156,946.57/x
  3. Step 3: Cross multiply
    286,005.94x = 394,687.09 × 156,946.57
  4. Step 4: Simplify right side
    286,005.94x = 61,944,784,998.78
  5. Step 5: Solve for x
    x = 61,944,784,998.78/286,005.94
  6. Step 6: Final answer
    x = 216,585.66

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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.