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Finding the Fourth Proportional to 417,616.56, 576,315.08 and 226,631.60

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Solution

The fourth proportional to 417,616.56, 576,315.08 and 226,631.60 is: 312,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,616.56 : 576,315.08 = 226,631.60 : x
  2. Step 2: Convert to fraction form
    417,616.56/576,315.08 = 226,631.60/x
  3. Step 3: Cross multiply
    417,616.56x = 576,315.08 × 226,631.60
  4. Step 4: Simplify right side
    417,616.56x = 130,611,208,684.53
  5. Step 5: Solve for x
    x = 130,611,208,684.53/417,616.56
  6. Step 6: Final answer
    x = 312,753.90

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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.