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Finding the Fourth Proportional to 351,006.30, 526,509.45 and 344,007.90

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Solution

The fourth proportional to 351,006.30, 526,509.45 and 344,007.90 is: 516,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,006.30 : 526,509.45 = 344,007.90 : x
  2. Step 2: Convert to fraction form
    351,006.30/526,509.45 = 344,007.90/x
  3. Step 3: Cross multiply
    351,006.30x = 526,509.45 × 344,007.90
  4. Step 4: Simplify right side
    351,006.30x = 181,123,410,224.66
  5. Step 5: Solve for x
    x = 181,123,410,224.66/351,006.30
  6. Step 6: Final answer
    x = 516,011.85

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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.