Home / 527,404.49-727,821.69-285,687.06

Finding the Fourth Proportional to 527,404.49, 727,821.69 and 285,687.06

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Solution

The fourth proportional to 527,404.49, 727,821.69 and 285,687.06 is: 394,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,404.49 : 727,821.69 = 285,687.06 : x
  2. Step 2: Convert to fraction form
    527,404.49/727,821.69 = 285,687.06/x
  3. Step 3: Cross multiply
    527,404.49x = 727,821.69 × 285,687.06
  4. Step 4: Simplify right side
    527,404.49x = 207,929,238,820.33
  5. Step 5: Solve for x
    x = 207,929,238,820.33/527,404.49
  6. Step 6: Final answer
    x = 394,250.04

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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.