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Finding the Fourth Proportional to 471,339.70, 707,120.28 and 155,796.62

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Solution

The fourth proportional to 471,339.70, 707,120.28 and 155,796.62 is: 233,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,339.70 : 707,120.28 = 155,796.62 : x
  2. Step 2: Convert to fraction form
    471,339.70/707,120.28 = 155,796.62/x
  3. Step 3: Cross multiply
    471,339.70x = 707,120.28 × 155,796.62
  4. Step 4: Simplify right side
    471,339.70x = 110,166,949,557.45
  5. Step 5: Solve for x
    x = 110,166,949,557.45/471,339.70
  6. Step 6: Final answer
    x = 233,731.53

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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.