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Finding the Fourth Proportional to 522,556.32, 720,861.89 and 341,374.31

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Solution

The fourth proportional to 522,556.32, 720,861.89 and 341,374.31 is: 470,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,556.32 : 720,861.89 = 341,374.31 : x
  2. Step 2: Convert to fraction form
    522,556.32/720,861.89 = 341,374.31/x
  3. Step 3: Cross multiply
    522,556.32x = 720,861.89 × 341,374.31
  4. Step 4: Simplify right side
    522,556.32x = 246,083,727,696.10
  5. Step 5: Solve for x
    x = 246,083,727,696.10/522,556.32
  6. Step 6: Final answer
    x = 470,922.88

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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.