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Finding the Fourth Proportional to 348,527.80, 521,625.30 and 243,551.80

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Solution

The fourth proportional to 348,527.80, 521,625.30 and 243,551.80 is: 364,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,527.80 : 521,625.30 = 243,551.80 : x
  2. Step 2: Convert to fraction form
    348,527.80/521,625.30 = 243,551.80/x
  3. Step 3: Cross multiply
    348,527.80x = 521,625.30 × 243,551.80
  4. Step 4: Simplify right side
    348,527.80x = 127,042,780,740.54
  5. Step 5: Solve for x
    x = 127,042,780,740.54/348,527.80
  6. Step 6: Final answer
    x = 364,512.62

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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.