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Finding the Fourth Proportional to 480,339.40, 720,523.68 and 164,791.84

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Solution

The fourth proportional to 480,339.40, 720,523.68 and 164,791.84 is: 247,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,339.40 : 720,523.68 = 164,791.84 : x
  2. Step 2: Convert to fraction form
    480,339.40/720,523.68 = 164,791.84/x
  3. Step 3: Cross multiply
    480,339.40x = 720,523.68 × 164,791.84
  4. Step 4: Simplify right side
    480,339.40x = 118,736,422,990.77
  5. Step 5: Solve for x
    x = 118,736,422,990.77/480,339.40
  6. Step 6: Final answer
    x = 247,192.76

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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.