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Finding the Fourth Proportional to 438,840.90, 605,596.98 and 237,636.90

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Solution

The fourth proportional to 438,840.90, 605,596.98 and 237,636.90 is: 327,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,840.90 : 605,596.98 = 237,636.90 : x
  2. Step 2: Convert to fraction form
    438,840.90/605,596.98 = 237,636.90/x
  3. Step 3: Cross multiply
    438,840.90x = 605,596.98 × 237,636.90
  4. Step 4: Simplify right side
    438,840.90x = 143,912,188,976.56
  5. Step 5: Solve for x
    x = 143,912,188,976.56/438,840.90
  6. Step 6: Final answer
    x = 327,937.05

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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.