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Finding the Fourth Proportional to 443,233.60, 664,461.60 and 265,811.20

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Solution

The fourth proportional to 443,233.60, 664,461.60 and 265,811.20 is: 398,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,233.60 : 664,461.60 = 265,811.20 : x
  2. Step 2: Convert to fraction form
    443,233.60/664,461.60 = 265,811.20/x
  3. Step 3: Cross multiply
    443,233.60x = 664,461.60 × 265,811.20
  4. Step 4: Simplify right side
    443,233.60x = 176,621,335,249.92
  5. Step 5: Solve for x
    x = 176,621,335,249.92/443,233.60
  6. Step 6: Final answer
    x = 398,483.63

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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.