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Finding the Fourth Proportional to 348,568.40, 521,540.40 and 230,470.40

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Solution

The fourth proportional to 348,568.40, 521,540.40 and 230,470.40 is: 344,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,568.40 : 521,540.40 = 230,470.40 : x
  2. Step 2: Convert to fraction form
    348,568.40/521,540.40 = 230,470.40/x
  3. Step 3: Cross multiply
    348,568.40x = 521,540.40 × 230,470.40
  4. Step 4: Simplify right side
    348,568.40x = 120,199,624,604.16
  5. Step 5: Solve for x
    x = 120,199,624,604.16/348,568.40
  6. Step 6: Final answer
    x = 344,837.98

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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.