Home / 527,609.31-791,407.01-128,248.94

Finding the Fourth Proportional to 527,609.31, 791,407.01 and 128,248.94

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Solution

The fourth proportional to 527,609.31, 791,407.01 and 128,248.94 is: 192,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,609.31 : 791,407.01 = 128,248.94 : x
  2. Step 2: Convert to fraction form
    527,609.31/791,407.01 = 128,248.94/x
  3. Step 3: Cross multiply
    527,609.31x = 791,407.01 × 128,248.94
  4. Step 4: Simplify right side
    527,609.31x = 101,497,105,542.79
  5. Step 5: Solve for x
    x = 101,497,105,542.79/527,609.31
  6. Step 6: Final answer
    x = 192,371.71

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1.5x scale

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.