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Finding the Fourth Proportional to 605,762.55, 908,468.87 and 206,394.48

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Solution

The fourth proportional to 605,762.55, 908,468.87 and 206,394.48 is: 309,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,762.55 : 908,468.87 = 206,394.48 : x
  2. Step 2: Convert to fraction form
    605,762.55/908,468.87 = 206,394.48/x
  3. Step 3: Cross multiply
    605,762.55x = 908,468.87 × 206,394.48
  4. Step 4: Simplify right side
    605,762.55x = 187,502,958,987.87
  5. Step 5: Solve for x
    x = 187,502,958,987.87/605,762.55
  6. Step 6: Final answer
    x = 309,532.11

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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.