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Finding the Fourth Proportional to 451,861.92, 623,564.33 and 260,871.21

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Solution

The fourth proportional to 451,861.92, 623,564.33 and 260,871.21 is: 359,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,861.92 : 623,564.33 = 260,871.21 : x
  2. Step 2: Convert to fraction form
    451,861.92/623,564.33 = 260,871.21/x
  3. Step 3: Cross multiply
    451,861.92x = 623,564.33 × 260,871.21
  4. Step 4: Simplify right side
    451,861.92x = 162,669,979,975.58
  5. Step 5: Solve for x
    x = 162,669,979,975.58/451,861.92
  6. Step 6: Final answer
    x = 359,999.31

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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.