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Finding the Fourth Proportional to 577,856.60, 866,201.70 and 262,539.80

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Solution

The fourth proportional to 577,856.60, 866,201.70 and 262,539.80 is: 393,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,856.60 : 866,201.70 = 262,539.80 : x
  2. Step 2: Convert to fraction form
    577,856.60/866,201.70 = 262,539.80/x
  3. Step 3: Cross multiply
    577,856.60x = 866,201.70 × 262,539.80
  4. Step 4: Simplify right side
    577,856.60x = 227,412,421,077.66
  5. Step 5: Solve for x
    x = 227,412,421,077.66/577,856.60
  6. Step 6: Final answer
    x = 393,544.73

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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.