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Finding the Fourth Proportional to 577,354.70, 866,817.41 and 324,812.90

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Solution

The fourth proportional to 577,354.70, 866,817.41 and 324,812.90 is: 487,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,354.70 : 866,817.41 = 324,812.90 : x
  2. Step 2: Convert to fraction form
    577,354.70/866,817.41 = 324,812.90/x
  3. Step 3: Cross multiply
    577,354.70x = 866,817.41 × 324,812.90
  4. Step 4: Simplify right side
    577,354.70x = 281,553,477,255.57
  5. Step 5: Solve for x
    x = 281,553,477,255.57/577,354.70
  6. Step 6: Final answer
    x = 487,661.18

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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.