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Finding the Fourth Proportional to 324,484.48, 486,851.34 and 228,513.79

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Solution

The fourth proportional to 324,484.48, 486,851.34 and 228,513.79 is: 342,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,484.48 : 486,851.34 = 228,513.79 : x
  2. Step 2: Convert to fraction form
    324,484.48/486,851.34 = 228,513.79/x
  3. Step 3: Cross multiply
    324,484.48x = 486,851.34 × 228,513.79
  4. Step 4: Simplify right side
    324,484.48x = 111,252,244,869.98
  5. Step 5: Solve for x
    x = 111,252,244,869.98/324,484.48
  6. Step 6: Final answer
    x = 342,858.45

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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.