Home / 527,580.60-791,371.98-128,221.98

Finding the Fourth Proportional to 527,580.60, 791,371.98 and 128,221.98

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Solution

The fourth proportional to 527,580.60, 791,371.98 and 128,221.98 is: 192,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,580.60 : 791,371.98 = 128,221.98 : x
  2. Step 2: Convert to fraction form
    527,580.60/791,371.98 = 128,221.98/x
  3. Step 3: Cross multiply
    527,580.60x = 791,371.98 × 128,221.98
  4. Step 4: Simplify right side
    527,580.60x = 101,471,282,192.12
  5. Step 5: Solve for x
    x = 101,471,282,192.12/527,580.60
  6. Step 6: Final answer
    x = 192,333.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.