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Finding the Fourth Proportional to 348,469.60, 522,166.80 and 259,304.80

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Solution

The fourth proportional to 348,469.60, 522,166.80 and 259,304.80 is: 388,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,469.60 : 522,166.80 = 259,304.80 : x
  2. Step 2: Convert to fraction form
    348,469.60/522,166.80 = 259,304.80/x
  3. Step 3: Cross multiply
    348,469.60x = 522,166.80 × 259,304.80
  4. Step 4: Simplify right side
    348,469.60x = 135,400,357,640.64
  5. Step 5: Solve for x
    x = 135,400,357,640.64/348,469.60
  6. Step 6: Final answer
    x = 388,557.16

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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.