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Finding the Fourth Proportional to 658,545.80, 987,369.21 and 350,843.81

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Solution

The fourth proportional to 658,545.80, 987,369.21 and 350,843.81 is: 526,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,545.80 : 987,369.21 = 350,843.81 : x
  2. Step 2: Convert to fraction form
    658,545.80/987,369.21 = 350,843.81/x
  3. Step 3: Cross multiply
    658,545.80x = 987,369.21 × 350,843.81
  4. Step 4: Simplify right side
    658,545.80x = 346,412,370,576.24
  5. Step 5: Solve for x
    x = 346,412,370,576.24/658,545.80
  6. Step 6: Final answer
    x = 526,026.24

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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.