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Finding the Fourth Proportional to 438,515.25, 605,151.05 and 237,311.25

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Solution

The fourth proportional to 438,515.25, 605,151.05 and 237,311.25 is: 327,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,515.25 : 605,151.05 = 237,311.25 : x
  2. Step 2: Convert to fraction form
    438,515.25/605,151.05 = 237,311.25/x
  3. Step 3: Cross multiply
    438,515.25x = 605,151.05 × 237,311.25
  4. Step 4: Simplify right side
    438,515.25x = 143,609,150,927.76
  5. Step 5: Solve for x
    x = 143,609,150,927.76/438,515.25
  6. Step 6: Final answer
    x = 327,489.53

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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.