Home / 527,023.18-727,291.80-285,305.56

Finding the Fourth Proportional to 527,023.18, 727,291.80 and 285,305.56

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Solution

The fourth proportional to 527,023.18, 727,291.80 and 285,305.56 is: 393,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,023.18 : 727,291.80 = 285,305.56 : x
  2. Step 2: Convert to fraction form
    527,023.18/727,291.80 = 285,305.56/x
  3. Step 3: Cross multiply
    527,023.18x = 727,291.80 × 285,305.56
  4. Step 4: Simplify right side
    527,023.18x = 207,500,394,282.41
  5. Step 5: Solve for x
    x = 207,500,394,282.41/527,023.18
  6. Step 6: Final answer
    x = 393,721.57

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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.