Home / 527,385.09-727,791.09-285,667.11

Finding the Fourth Proportional to 527,385.09, 727,791.09 and 285,667.11

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Solution

The fourth proportional to 527,385.09, 727,791.09 and 285,667.11 is: 394,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,385.09 : 727,791.09 = 285,667.11 : x
  2. Step 2: Convert to fraction form
    527,385.09/727,791.09 = 285,667.11/x
  3. Step 3: Cross multiply
    527,385.09x = 727,791.09 × 285,667.11
  4. Step 4: Simplify right side
    527,385.09x = 207,905,977,364.05
  5. Step 5: Solve for x
    x = 207,905,977,364.05/527,385.09
  6. Step 6: Final answer
    x = 394,220.43

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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.