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Finding the Fourth Proportional to 324,474.63, 486,033.05 and 260,951.39

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Solution

The fourth proportional to 324,474.63, 486,033.05 and 260,951.39 is: 390,881.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,474.63 : 486,033.05 = 260,951.39 : x
  2. Step 2: Convert to fraction form
    324,474.63/486,033.05 = 260,951.39/x
  3. Step 3: Cross multiply
    324,474.63x = 486,033.05 × 260,951.39
  4. Step 4: Simplify right side
    324,474.63x = 126,830,996,248.52
  5. Step 5: Solve for x
    x = 126,830,996,248.52/324,474.63
  6. Step 6: Final answer
    x = 390,881.09

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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.