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Finding the Fourth Proportional to 2,438.31, 3,657.53 and 794.95

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Solution

The fourth proportional to 2,438.31, 3,657.53 and 794.95 is: 1,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.31 : 3,657.53 = 794.95 : x
  2. Step 2: Convert to fraction form
    2,438.31/3,657.53 = 794.95/x
  3. Step 3: Cross multiply
    2,438.31x = 3,657.53 × 794.95
  4. Step 4: Simplify right side
    2,438.31x = 2,907,553.47
  5. Step 5: Solve for x
    x = 2,907,553.47/2,438.31
  6. Step 6: Final answer
    x = 1,192.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.