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Finding the Fourth Proportional to 396,900.30, 547,706.70 and 235,751.07

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Solution

The fourth proportional to 396,900.30, 547,706.70 and 235,751.07 is: 325,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,900.30 : 547,706.70 = 235,751.07 : x
  2. Step 2: Convert to fraction form
    396,900.30/547,706.70 = 235,751.07/x
  3. Step 3: Cross multiply
    396,900.30x = 547,706.70 × 235,751.07
  4. Step 4: Simplify right side
    396,900.30x = 129,122,440,571.17
  5. Step 5: Solve for x
    x = 129,122,440,571.17/396,900.30
  6. Step 6: Final answer
    x = 325,327.14

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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.