Home / 400,966.44-553,333.38-219,689.68

Finding the Fourth Proportional to 400,966.44, 553,333.38 and 219,689.68

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Solution

The fourth proportional to 400,966.44, 553,333.38 and 219,689.68 is: 303,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,966.44 : 553,333.38 = 219,689.68 : x
  2. Step 2: Convert to fraction form
    400,966.44/553,333.38 = 219,689.68/x
  3. Step 3: Cross multiply
    400,966.44x = 553,333.38 × 219,689.68
  4. Step 4: Simplify right side
    400,966.44x = 121,561,633,185.52
  5. Step 5: Solve for x
    x = 121,561,633,185.52/400,966.44
  6. Step 6: Final answer
    x = 303,171.59

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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.