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Finding the Fourth Proportional to 479,349.54, 661,516.20 and 264,503.46

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Solution

The fourth proportional to 479,349.54, 661,516.20 and 264,503.46 is: 365,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,349.54 : 661,516.20 = 264,503.46 : x
  2. Step 2: Convert to fraction form
    479,349.54/661,516.20 = 264,503.46/x
  3. Step 3: Cross multiply
    479,349.54x = 661,516.20 × 264,503.46
  4. Step 4: Simplify right side
    479,349.54x = 174,973,323,746.05
  5. Step 5: Solve for x
    x = 174,973,323,746.05/479,349.54
  6. Step 6: Final answer
    x = 365,022.41

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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.