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Finding the Fourth Proportional to 274,140.60, 411,210.90 and 262,330.80

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Solution

The fourth proportional to 274,140.60, 411,210.90 and 262,330.80 is: 393,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,140.60 : 411,210.90 = 262,330.80 : x
  2. Step 2: Convert to fraction form
    274,140.60/411,210.90 = 262,330.80/x
  3. Step 3: Cross multiply
    274,140.60x = 411,210.90 × 262,330.80
  4. Step 4: Simplify right side
    274,140.60x = 107,873,284,365.72
  5. Step 5: Solve for x
    x = 107,873,284,365.72/274,140.60
  6. Step 6: Final answer
    x = 393,496.20

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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.