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Finding the Fourth Proportional to 421,636.08, 631,440.66 and 241,174.42

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Solution

The fourth proportional to 421,636.08, 631,440.66 and 241,174.42 is: 361,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,636.08 : 631,440.66 = 241,174.42 : x
  2. Step 2: Convert to fraction form
    421,636.08/631,440.66 = 241,174.42/x
  3. Step 3: Cross multiply
    421,636.08x = 631,440.66 × 241,174.42
  4. Step 4: Simplify right side
    421,636.08x = 152,287,334,939.92
  5. Step 5: Solve for x
    x = 152,287,334,939.92/421,636.08
  6. Step 6: Final answer
    x = 361,181.93

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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.