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Finding the Fourth Proportional to 493,264.60, 740,091.30 and 193,694.20

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Solution

The fourth proportional to 493,264.60, 740,091.30 and 193,694.20 is: 290,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,264.60 : 740,091.30 = 193,694.20 : x
  2. Step 2: Convert to fraction form
    493,264.60/740,091.30 = 193,694.20/x
  3. Step 3: Cross multiply
    493,264.60x = 740,091.30 × 193,694.20
  4. Step 4: Simplify right side
    493,264.60x = 143,351,392,280.46
  5. Step 5: Solve for x
    x = 143,351,392,280.46/493,264.60
  6. Step 6: Final answer
    x = 290,617.64

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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.