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Finding the Fourth Proportional to 417,605.56, 576,297.18 and 226,618.90

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Solution

The fourth proportional to 417,605.56, 576,297.18 and 226,618.90 is: 312,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,605.56 : 576,297.18 = 226,618.90 : x
  2. Step 2: Convert to fraction form
    417,605.56/576,297.18 = 226,618.90/x
  3. Step 3: Cross multiply
    417,605.56x = 576,297.18 × 226,618.90
  4. Step 4: Simplify right side
    417,605.56x = 130,599,831,563.96
  5. Step 5: Solve for x
    x = 130,599,831,563.96/417,605.56
  6. Step 6: Final answer
    x = 312,734.90

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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.