Home / 396,516.02-547,193.38-215,228.10

Finding the Fourth Proportional to 396,516.02, 547,193.38 and 215,228.10

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Solution

The fourth proportional to 396,516.02, 547,193.38 and 215,228.10 is: 297,015.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,516.02 : 547,193.38 = 215,228.10 : x
  2. Step 2: Convert to fraction form
    396,516.02/547,193.38 = 215,228.10/x
  3. Step 3: Cross multiply
    396,516.02x = 547,193.38 × 215,228.10
  4. Step 4: Simplify right side
    396,516.02x = 117,771,391,509.98
  5. Step 5: Solve for x
    x = 117,771,391,509.98/396,516.02
  6. Step 6: Final answer
    x = 297,015.47

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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.