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Finding the Fourth Proportional to 421,796.16, 581,891.04 and 251,929.44

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Solution

The fourth proportional to 421,796.16, 581,891.04 and 251,929.44 is: 347,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,796.16 : 581,891.04 = 251,929.44 : x
  2. Step 2: Convert to fraction form
    421,796.16/581,891.04 = 251,929.44/x
  3. Step 3: Cross multiply
    421,796.16x = 581,891.04 × 251,929.44
  4. Step 4: Simplify right side
    421,796.16x = 146,595,483,848.22
  5. Step 5: Solve for x
    x = 146,595,483,848.22/421,796.16
  6. Step 6: Final answer
    x = 347,550.54

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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.