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Finding the Fourth Proportional to 348,004.80, 522,007.20 and 269,272.80

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Solution

The fourth proportional to 348,004.80, 522,007.20 and 269,272.80 is: 403,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,004.80 : 522,007.20 = 269,272.80 : x
  2. Step 2: Convert to fraction form
    348,004.80/522,007.20 = 269,272.80/x
  3. Step 3: Cross multiply
    348,004.80x = 522,007.20 × 269,272.80
  4. Step 4: Simplify right side
    348,004.80x = 140,562,340,364.16
  5. Step 5: Solve for x
    x = 140,562,340,364.16/348,004.80
  6. Step 6: Final answer
    x = 403,909.20

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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.