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Finding the Fourth Proportional to 291,920.22, 437,026.86 and 263,904.48

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Solution

The fourth proportional to 291,920.22, 437,026.86 and 263,904.48 is: 395,085.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,920.22 : 437,026.86 = 263,904.48 : x
  2. Step 2: Convert to fraction form
    291,920.22/437,026.86 = 263,904.48/x
  3. Step 3: Cross multiply
    291,920.22x = 437,026.86 × 263,904.48
  4. Step 4: Simplify right side
    291,920.22x = 115,333,346,234.33
  5. Step 5: Solve for x
    x = 115,333,346,234.33/291,920.22
  6. Step 6: Final answer
    x = 395,085.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.