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Finding the Fourth Proportional to 526,796.76, 789,875.15 and 206,564.96

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Solution

The fourth proportional to 526,796.76, 789,875.15 and 206,564.96 is: 309,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,796.76 : 789,875.15 = 206,564.96 : x
  2. Step 2: Convert to fraction form
    526,796.76/789,875.15 = 206,564.96/x
  3. Step 3: Cross multiply
    526,796.76x = 789,875.15 × 206,564.96
  4. Step 4: Simplify right side
    526,796.76x = 163,160,529,706.61
  5. Step 5: Solve for x
    x = 163,160,529,706.61/526,796.76
  6. Step 6: Final answer
    x = 309,721.97

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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.