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Finding the Fourth Proportional to 407,640.38, 562,559.91 and 235,552.64

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Solution

The fourth proportional to 407,640.38, 562,559.91 and 235,552.64 is: 325,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,640.38 : 562,559.91 = 235,552.64 : x
  2. Step 2: Convert to fraction form
    407,640.38/562,559.91 = 235,552.64/x
  3. Step 3: Cross multiply
    407,640.38x = 562,559.91 × 235,552.64
  4. Step 4: Simplify right side
    407,640.38x = 132,512,471,958.66
  5. Step 5: Solve for x
    x = 132,512,471,958.66/407,640.38
  6. Step 6: Final answer
    x = 325,072.00

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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.