Home / 386,780.65-533,766.50-217,027.33

Finding the Fourth Proportional to 386,780.65, 533,766.50 and 217,027.33

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Solution

The fourth proportional to 386,780.65, 533,766.50 and 217,027.33 is: 299,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,780.65 : 533,766.50 = 217,027.33 : x
  2. Step 2: Convert to fraction form
    386,780.65/533,766.50 = 217,027.33/x
  3. Step 3: Cross multiply
    386,780.65x = 533,766.50 × 217,027.33
  4. Step 4: Simplify right side
    386,780.65x = 115,841,918,881.01
  5. Step 5: Solve for x
    x = 115,841,918,881.01/386,780.65
  6. Step 6: Final answer
    x = 299,502.88

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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.