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Finding the Fourth Proportional to 407,425.23, 562,220.24 and 226,128.39

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Solution

The fourth proportional to 407,425.23, 562,220.24 and 226,128.39 is: 312,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,425.23 : 562,220.24 = 226,128.39 : x
  2. Step 2: Convert to fraction form
    407,425.23/562,220.24 = 226,128.39/x
  3. Step 3: Cross multiply
    407,425.23x = 562,220.24 × 226,128.39
  4. Step 4: Simplify right side
    407,425.23x = 127,133,956,565.97
  5. Step 5: Solve for x
    x = 127,133,956,565.97/407,425.23
  6. Step 6: Final answer
    x = 312,042.42

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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.