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Finding the Fourth Proportional to 609,650.20, 912,401.70 and 535,000.60

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Solution

The fourth proportional to 609,650.20, 912,401.70 and 535,000.60 is: 800,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,650.20 : 912,401.70 = 535,000.60 : x
  2. Step 2: Convert to fraction form
    609,650.20/912,401.70 = 535,000.60/x
  3. Step 3: Cross multiply
    609,650.20x = 912,401.70 × 535,000.60
  4. Step 4: Simplify right side
    609,650.20x = 488,135,456,941.02
  5. Step 5: Solve for x
    x = 488,135,456,941.02/609,650.20
  6. Step 6: Final answer
    x = 800,681.21

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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.