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Finding the Fourth Proportional to 403,732.20, 605,598.30 and 377,293.80

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Solution

The fourth proportional to 403,732.20, 605,598.30 and 377,293.80 is: 565,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,732.20 : 605,598.30 = 377,293.80 : x
  2. Step 2: Convert to fraction form
    403,732.20/605,598.30 = 377,293.80/x
  3. Step 3: Cross multiply
    403,732.20x = 605,598.30 × 377,293.80
  4. Step 4: Simplify right side
    403,732.20x = 228,488,483,880.54
  5. Step 5: Solve for x
    x = 228,488,483,880.54/403,732.20
  6. Step 6: Final answer
    x = 565,940.70

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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.