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Finding the Fourth Proportional to 577,847.10, 866,187.45 and 262,530.30

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Solution

The fourth proportional to 577,847.10, 866,187.45 and 262,530.30 is: 393,530.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,847.10 : 866,187.45 = 262,530.30 : x
  2. Step 2: Convert to fraction form
    577,847.10/866,187.45 = 262,530.30/x
  3. Step 3: Cross multiply
    577,847.10x = 866,187.45 × 262,530.30
  4. Step 4: Simplify right side
    577,847.10x = 227,400,451,104.74
  5. Step 5: Solve for x
    x = 227,400,451,104.74/577,847.10
  6. Step 6: Final answer
    x = 393,530.49

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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.