Home / 396,441.57-547,089.65-215,153.46

Finding the Fourth Proportional to 396,441.57, 547,089.65 and 215,153.46

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Solution

The fourth proportional to 396,441.57, 547,089.65 and 215,153.46 is: 296,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,441.57 : 547,089.65 = 215,153.46 : x
  2. Step 2: Convert to fraction form
    396,441.57/547,089.65 = 215,153.46/x
  3. Step 3: Cross multiply
    396,441.57x = 547,089.65 × 215,153.46
  4. Step 4: Simplify right side
    396,441.57x = 117,708,230,051.92
  5. Step 5: Solve for x
    x = 117,708,230,051.92/396,441.57
  6. Step 6: Final answer
    x = 296,911.93

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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.