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Finding the Fourth Proportional to 348,910.40, 522,053.40 and 230,812.40

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Solution

The fourth proportional to 348,910.40, 522,053.40 and 230,812.40 is: 345,350.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,910.40 : 522,053.40 = 230,812.40 : x
  2. Step 2: Convert to fraction form
    348,910.40/522,053.40 = 230,812.40/x
  3. Step 3: Cross multiply
    348,910.40x = 522,053.40 × 230,812.40
  4. Step 4: Simplify right side
    348,910.40x = 120,496,398,182.16
  5. Step 5: Solve for x
    x = 120,496,398,182.16/348,910.40
  6. Step 6: Final answer
    x = 345,350.55

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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.