Home / 386,959.20-533,974.40-217,160.52

Finding the Fourth Proportional to 386,959.20, 533,974.40 and 217,160.52

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Solution

The fourth proportional to 386,959.20, 533,974.40 and 217,160.52 is: 299,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,959.20 : 533,974.40 = 217,160.52 : x
  2. Step 2: Convert to fraction form
    386,959.20/533,974.40 = 217,160.52/x
  3. Step 3: Cross multiply
    386,959.20x = 533,974.40 × 217,160.52
  4. Step 4: Simplify right side
    386,959.20x = 115,958,158,370.69
  5. Step 5: Solve for x
    x = 115,958,158,370.69/386,959.20
  6. Step 6: Final answer
    x = 299,665.08

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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.