Home / 312,410.06-431,127.94-169,170.12

Finding the Fourth Proportional to 312,410.06, 431,127.94 and 169,170.12

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Solution

The fourth proportional to 312,410.06, 431,127.94 and 169,170.12 is: 233,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,410.06 : 431,127.94 = 169,170.12 : x
  2. Step 2: Convert to fraction form
    312,410.06/431,127.94 = 169,170.12/x
  3. Step 3: Cross multiply
    312,410.06x = 431,127.94 × 169,170.12
  4. Step 4: Simplify right side
    312,410.06x = 72,933,965,715.21
  5. Step 5: Solve for x
    x = 72,933,965,715.21/312,410.06
  6. Step 6: Final answer
    x = 233,455.88

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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.