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Finding the Fourth Proportional to 348,858.80, 523,288.20 and 344,193.20

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Solution

The fourth proportional to 348,858.80, 523,288.20 and 344,193.20 is: 516,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,858.80 : 523,288.20 = 344,193.20 : x
  2. Step 2: Convert to fraction form
    348,858.80/523,288.20 = 344,193.20/x
  3. Step 3: Cross multiply
    348,858.80x = 523,288.20 × 344,193.20
  4. Step 4: Simplify right side
    348,858.80x = 180,112,240,080.24
  5. Step 5: Solve for x
    x = 180,112,240,080.24/348,858.80
  6. Step 6: Final answer
    x = 516,289.80

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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.