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Finding the Fourth Proportional to 438,531.57, 605,173.61 and 237,327.57

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Solution

The fourth proportional to 438,531.57, 605,173.61 and 237,327.57 is: 327,512.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,531.57 : 605,173.61 = 237,327.57 : x
  2. Step 2: Convert to fraction form
    438,531.57/605,173.61 = 237,327.57/x
  3. Step 3: Cross multiply
    438,531.57x = 605,173.61 × 237,327.57
  4. Step 4: Simplify right side
    438,531.57x = 143,624,382,289.43
  5. Step 5: Solve for x
    x = 143,624,382,289.43/438,531.57
  6. Step 6: Final answer
    x = 327,512.07

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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.