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Finding the Fourth Proportional to 493,265.60, 740,092.80 and 193,695.20

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Solution

The fourth proportional to 493,265.60, 740,092.80 and 193,695.20 is: 290,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,265.60 : 740,092.80 = 193,695.20 : x
  2. Step 2: Convert to fraction form
    493,265.60/740,092.80 = 193,695.20/x
  3. Step 3: Cross multiply
    493,265.60x = 740,092.80 × 193,695.20
  4. Step 4: Simplify right side
    493,265.60x = 143,352,422,914.56
  5. Step 5: Solve for x
    x = 143,352,422,914.56/493,265.60
  6. Step 6: Final answer
    x = 290,619.14

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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.