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Finding the Fourth Proportional to 396,245.42, 546,675.18 and 260,352.56

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Solution

The fourth proportional to 396,245.42, 546,675.18 and 260,352.56 is: 359,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,245.42 : 546,675.18 = 260,352.56 : x
  2. Step 2: Convert to fraction form
    396,245.42/546,675.18 = 260,352.56/x
  3. Step 3: Cross multiply
    396,245.42x = 546,675.18 × 260,352.56
  4. Step 4: Simplify right side
    396,245.42x = 142,328,282,601.46
  5. Step 5: Solve for x
    x = 142,328,282,601.46/396,245.42
  6. Step 6: Final answer
    x = 359,192.25

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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.