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Finding the Fourth Proportional to 343,816.95, 515,725.43 and 250,504.95

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Solution

The fourth proportional to 343,816.95, 515,725.43 and 250,504.95 is: 375,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,816.95 : 515,725.43 = 250,504.95 : x
  2. Step 2: Convert to fraction form
    343,816.95/515,725.43 = 250,504.95/x
  3. Step 3: Cross multiply
    343,816.95x = 515,725.43 × 250,504.95
  4. Step 4: Simplify right side
    343,816.95x = 129,191,771,803.35
  5. Step 5: Solve for x
    x = 129,191,771,803.35/343,816.95
  6. Step 6: Final answer
    x = 375,757.43

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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.