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Finding the Fourth Proportional to 982,240.80, 1,471,978.80 and 727,533.60

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Solution

The fourth proportional to 982,240.80, 1,471,978.80 and 727,533.60 is: 1,090,276.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,240.80 : 1,471,978.80 = 727,533.60 : x
  2. Step 2: Convert to fraction form
    982,240.80/1,471,978.80 = 727,533.60/x
  3. Step 3: Cross multiply
    982,240.80x = 1,471,978.80 × 727,533.60
  4. Step 4: Simplify right side
    982,240.80x = 1,070,914,035,487.68
  5. Step 5: Solve for x
    x = 1,070,914,035,487.68/982,240.80
  6. Step 6: Final answer
    x = 1,090,276.47

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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.