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Finding the Fourth Proportional to 407,963.36, 562,956.08 and 226,680.80

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Solution

The fourth proportional to 407,963.36, 562,956.08 and 226,680.80 is: 312,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,963.36 : 562,956.08 = 226,680.80 : x
  2. Step 2: Convert to fraction form
    407,963.36/562,956.08 = 226,680.80/x
  3. Step 3: Cross multiply
    407,963.36x = 562,956.08 × 226,680.80
  4. Step 4: Simplify right side
    407,963.36x = 127,611,334,579.26
  5. Step 5: Solve for x
    x = 127,611,334,579.26/407,963.36
  6. Step 6: Final answer
    x = 312,800.97

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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.