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Finding the Fourth Proportional to 605,008.89, 907,301.79 and 178,431.57

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Solution

The fourth proportional to 605,008.89, 907,301.79 and 178,431.57 is: 267,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,008.89 : 907,301.79 = 178,431.57 : x
  2. Step 2: Convert to fraction form
    605,008.89/907,301.79 = 178,431.57/x
  3. Step 3: Cross multiply
    605,008.89x = 907,301.79 × 178,431.57
  4. Step 4: Simplify right side
    605,008.89x = 161,891,282,853.51
  5. Step 5: Solve for x
    x = 161,891,282,853.51/605,008.89
  6. Step 6: Final answer
    x = 267,584.97

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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.