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Finding the Fourth Proportional to 577,960.60, 866,357.70 and 262,643.80

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Solution

The fourth proportional to 577,960.60, 866,357.70 and 262,643.80 is: 393,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,960.60 : 866,357.70 = 262,643.80 : x
  2. Step 2: Convert to fraction form
    577,960.60/866,357.70 = 262,643.80/x
  3. Step 3: Cross multiply
    577,960.60x = 866,357.70 × 262,643.80
  4. Step 4: Simplify right side
    577,960.60x = 227,543,478,487.26
  5. Step 5: Solve for x
    x = 227,543,478,487.26/577,960.60
  6. Step 6: Final answer
    x = 393,700.68

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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.