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Finding the Fourth Proportional to 439,732.40, 659,817.30 and 173,501.60

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Solution

The fourth proportional to 439,732.40, 659,817.30 and 173,501.60 is: 260,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,732.40 : 659,817.30 = 173,501.60 : x
  2. Step 2: Convert to fraction form
    439,732.40/659,817.30 = 173,501.60/x
  3. Step 3: Cross multiply
    439,732.40x = 659,817.30 × 173,501.60
  4. Step 4: Simplify right side
    439,732.40x = 114,479,357,257.68
  5. Step 5: Solve for x
    x = 114,479,357,257.68/439,732.40
  6. Step 6: Final answer
    x = 260,338.69

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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.