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Finding the Fourth Proportional to 439,084.93, 605,960.33 and 266,974.39

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Solution

The fourth proportional to 439,084.93, 605,960.33 and 266,974.39 is: 368,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,084.93 : 605,960.33 = 266,974.39 : x
  2. Step 2: Convert to fraction form
    439,084.93/605,960.33 = 266,974.39/x
  3. Step 3: Cross multiply
    439,084.93x = 605,960.33 × 266,974.39
  4. Step 4: Simplify right side
    439,084.93x = 161,775,889,794.39
  5. Step 5: Solve for x
    x = 161,775,889,794.39/439,084.93
  6. Step 6: Final answer
    x = 368,438.72

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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.