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Finding the Fourth Proportional to 591,662.90, 888,051.15 and 311,381.30

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Solution

The fourth proportional to 591,662.90, 888,051.15 and 311,381.30 is: 467,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,662.90 : 888,051.15 = 311,381.30 : x
  2. Step 2: Convert to fraction form
    591,662.90/888,051.15 = 311,381.30/x
  3. Step 3: Cross multiply
    591,662.90x = 888,051.15 × 311,381.30
  4. Step 4: Simplify right side
    591,662.90x = 276,522,521,553.50
  5. Step 5: Solve for x
    x = 276,522,521,553.50/591,662.90
  6. Step 6: Final answer
    x = 467,364.98

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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.