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Finding the Fourth Proportional to 576,090.56, 863,904.79 and 238,902.14

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Solution

The fourth proportional to 576,090.56, 863,904.79 and 238,902.14 is: 358,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,090.56 : 863,904.79 = 238,902.14 : x
  2. Step 2: Convert to fraction form
    576,090.56/863,904.79 = 238,902.14/x
  3. Step 3: Cross multiply
    576,090.56x = 863,904.79 × 238,902.14
  4. Step 4: Simplify right side
    576,090.56x = 206,388,705,545.64
  5. Step 5: Solve for x
    x = 206,388,705,545.64/576,090.56
  6. Step 6: Final answer
    x = 358,257.40

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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.