Home / 286,173.28-394,920.65-178,805.57

Finding the Fourth Proportional to 286,173.28, 394,920.65 and 178,805.57

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Solution

The fourth proportional to 286,173.28, 394,920.65 and 178,805.57 is: 246,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,173.28 : 394,920.65 = 178,805.57 : x
  2. Step 2: Convert to fraction form
    286,173.28/394,920.65 = 178,805.57/x
  3. Step 3: Cross multiply
    286,173.28x = 394,920.65 × 178,805.57
  4. Step 4: Simplify right side
    286,173.28x = 70,614,011,033.99
  5. Step 5: Solve for x
    x = 70,614,011,033.99/286,173.28
  6. Step 6: Final answer
    x = 246,752.64

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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.