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Finding the Fourth Proportional to 351,011.80, 526,517.70 and 344,013.40

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Solution

The fourth proportional to 351,011.80, 526,517.70 and 344,013.40 is: 516,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,011.80 : 526,517.70 = 344,013.40 : x
  2. Step 2: Convert to fraction form
    351,011.80/526,517.70 = 344,013.40/x
  3. Step 3: Cross multiply
    351,011.80x = 526,517.70 × 344,013.40
  4. Step 4: Simplify right side
    351,011.80x = 181,129,144,137.18
  5. Step 5: Solve for x
    x = 181,129,144,137.18/351,011.80
  6. Step 6: Final answer
    x = 516,020.10

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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.