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Finding the Fourth Proportional to 577,458.40, 866,187.60 and 156,786.40

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Solution

The fourth proportional to 577,458.40, 866,187.60 and 156,786.40 is: 235,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,458.40 : 866,187.60 = 156,786.40 : x
  2. Step 2: Convert to fraction form
    577,458.40/866,187.60 = 156,786.40/x
  3. Step 3: Cross multiply
    577,458.40x = 866,187.60 × 156,786.40
  4. Step 4: Simplify right side
    577,458.40x = 135,806,435,528.64
  5. Step 5: Solve for x
    x = 135,806,435,528.64/577,458.40
  6. Step 6: Final answer
    x = 235,179.60

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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.