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Finding the Fourth Proportional to 480,993.12, 663,746.31 and 263,197.08

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Solution

The fourth proportional to 480,993.12, 663,746.31 and 263,197.08 is: 363,198.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,993.12 : 663,746.31 = 263,197.08 : x
  2. Step 2: Convert to fraction form
    480,993.12/663,746.31 = 263,197.08/x
  3. Step 3: Cross multiply
    480,993.12x = 663,746.31 × 263,197.08
  4. Step 4: Simplify right side
    480,993.12x = 174,696,090,652.78
  5. Step 5: Solve for x
    x = 174,696,090,652.78/480,993.12
  6. Step 6: Final answer
    x = 363,198.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.