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Finding the Fourth Proportional to 331,069.56, 456,876.36 and 185,855.16

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Solution

The fourth proportional to 331,069.56, 456,876.36 and 185,855.16 is: 256,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,069.56 : 456,876.36 = 185,855.16 : x
  2. Step 2: Convert to fraction form
    331,069.56/456,876.36 = 185,855.16/x
  3. Step 3: Cross multiply
    331,069.56x = 456,876.36 × 185,855.16
  4. Step 4: Simplify right side
    331,069.56x = 84,912,828,988.02
  5. Step 5: Solve for x
    x = 84,912,828,988.02/331,069.56
  6. Step 6: Final answer
    x = 256,480.33

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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.