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Finding the Fourth Proportional to 577,998.20, 866,738.10 and 262,292.60

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Solution

The fourth proportional to 577,998.20, 866,738.10 and 262,292.60 is: 393,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,998.20 : 866,738.10 = 262,292.60 : x
  2. Step 2: Convert to fraction form
    577,998.20/866,738.10 = 262,292.60/x
  3. Step 3: Cross multiply
    577,998.20x = 866,738.10 × 262,292.60
  4. Step 4: Simplify right side
    577,998.20x = 227,338,989,768.06
  5. Step 5: Solve for x
    x = 227,338,989,768.06/577,998.20
  6. Step 6: Final answer
    x = 393,321.28

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1.5x scale

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.