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Finding the Fourth Proportional to 526,212.28, 789,762.05 and 206,588.62

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Solution

The fourth proportional to 526,212.28, 789,762.05 and 206,588.62 is: 310,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,212.28 : 789,762.05 = 206,588.62 : x
  2. Step 2: Convert to fraction form
    526,212.28/789,762.05 = 206,588.62/x
  3. Step 3: Cross multiply
    526,212.28x = 789,762.05 × 206,588.62
  4. Step 4: Simplify right side
    526,212.28x = 163,155,850,545.63
  5. Step 5: Solve for x
    x = 163,155,850,545.63/526,212.28
  6. Step 6: Final answer
    x = 310,057.10

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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.