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Finding the Fourth Proportional to 577,866.40, 866,540.40 and 222,762.40

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Solution

The fourth proportional to 577,866.40, 866,540.40 and 222,762.40 is: 334,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,866.40 : 866,540.40 = 222,762.40 : x
  2. Step 2: Convert to fraction form
    577,866.40/866,540.40 = 222,762.40/x
  3. Step 3: Cross multiply
    577,866.40x = 866,540.40 × 222,762.40
  4. Step 4: Simplify right side
    577,866.40x = 193,032,619,200.96
  5. Step 5: Solve for x
    x = 193,032,619,200.96/577,866.40
  6. Step 6: Final answer
    x = 334,043.68

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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.