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Finding the Fourth Proportional to 299,081.77, 412,499.49 and 191,661.80

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Solution

The fourth proportional to 299,081.77, 412,499.49 and 191,661.80 is: 264,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,081.77 : 412,499.49 = 191,661.80 : x
  2. Step 2: Convert to fraction form
    299,081.77/412,499.49 = 191,661.80/x
  3. Step 3: Cross multiply
    299,081.77x = 412,499.49 × 191,661.80
  4. Step 4: Simplify right side
    299,081.77x = 79,060,391,971.25
  5. Step 5: Solve for x
    x = 79,060,391,971.25/299,081.77
  6. Step 6: Final answer
    x = 264,343.74

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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.