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Finding the Fourth Proportional to 396,868.84, 547,460.88 and 251,408.24

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Solution

The fourth proportional to 396,868.84, 547,460.88 and 251,408.24 is: 346,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,868.84 : 547,460.88 = 251,408.24 : x
  2. Step 2: Convert to fraction form
    396,868.84/547,460.88 = 251,408.24/x
  3. Step 3: Cross multiply
    396,868.84x = 547,460.88 × 251,408.24
  4. Step 4: Simplify right side
    396,868.84x = 137,636,176,309.65
  5. Step 5: Solve for x
    x = 137,636,176,309.65/396,868.84
  6. Step 6: Final answer
    x = 346,805.20

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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.