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Finding the Fourth Proportional to 272,931.60, 410,011.80 and 262,486.80

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Solution

The fourth proportional to 272,931.60, 410,011.80 and 262,486.80 is: 394,321.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,931.60 : 410,011.80 = 262,486.80 : x
  2. Step 2: Convert to fraction form
    272,931.60/410,011.80 = 262,486.80/x
  3. Step 3: Cross multiply
    272,931.60x = 410,011.80 × 262,486.80
  4. Step 4: Simplify right side
    272,931.60x = 107,622,685,344.24
  5. Step 5: Solve for x
    x = 107,622,685,344.24/272,931.60
  6. Step 6: Final answer
    x = 394,321.09

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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.