Home / 527,403.49-727,820.31-285,686.06

Finding the Fourth Proportional to 527,403.49, 727,820.31 and 285,686.06

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Solution

The fourth proportional to 527,403.49, 727,820.31 and 285,686.06 is: 394,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,403.49 : 727,820.31 = 285,686.06 : x
  2. Step 2: Convert to fraction form
    527,403.49/727,820.31 = 285,686.06/x
  3. Step 3: Cross multiply
    527,403.49x = 727,820.31 × 285,686.06
  4. Step 4: Simplify right side
    527,403.49x = 207,928,116,751.88
  5. Step 5: Solve for x
    x = 207,928,116,751.88/527,403.49
  6. Step 6: Final answer
    x = 394,248.66

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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.