Home / 386,780.68-533,766.54-217,027.36

Finding the Fourth Proportional to 386,780.68, 533,766.54 and 217,027.36

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Solution

The fourth proportional to 386,780.68, 533,766.54 and 217,027.36 is: 299,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,780.68 : 533,766.54 = 217,027.36 : x
  2. Step 2: Convert to fraction form
    386,780.68/533,766.54 = 217,027.36/x
  3. Step 3: Cross multiply
    386,780.68x = 533,766.54 × 217,027.36
  4. Step 4: Simplify right side
    386,780.68x = 115,841,943,032.53
  5. Step 5: Solve for x
    x = 115,841,943,032.53/386,780.68
  6. Step 6: Final answer
    x = 299,502.92

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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.