Home / 396,816.81-547,611.18-215,532.29

Finding the Fourth Proportional to 396,816.81, 547,611.18 and 215,532.29

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Solution

The fourth proportional to 396,816.81, 547,611.18 and 215,532.29 is: 297,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,816.81 : 547,611.18 = 215,532.29 : x
  2. Step 2: Convert to fraction form
    396,816.81/547,611.18 = 215,532.29/x
  3. Step 3: Cross multiply
    396,816.81x = 547,611.18 × 215,532.29
  4. Step 4: Simplify right side
    396,816.81x = 118,027,888,916.95
  5. Step 5: Solve for x
    x = 118,027,888,916.95/396,816.81
  6. Step 6: Final answer
    x = 297,436.72

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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.