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Finding the Fourth Proportional to 469,861.36, 648,409.00 and 255,001.42

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Solution

The fourth proportional to 469,861.36, 648,409.00 and 255,001.42 is: 351,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,861.36 : 648,409.00 = 255,001.42 : x
  2. Step 2: Convert to fraction form
    469,861.36/648,409.00 = 255,001.42/x
  3. Step 3: Cross multiply
    469,861.36x = 648,409.00 × 255,001.42
  4. Step 4: Simplify right side
    469,861.36x = 165,345,212,744.62
  5. Step 5: Solve for x
    x = 165,345,212,744.62/469,861.36
  6. Step 6: Final answer
    x = 351,902.13

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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.