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Finding the Fourth Proportional to 331,854.89, 457,999.08 and 188,636.46

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Solution

The fourth proportional to 331,854.89, 457,999.08 and 188,636.46 is: 260,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,854.89 : 457,999.08 = 188,636.46 : x
  2. Step 2: Convert to fraction form
    331,854.89/457,999.08 = 188,636.46/x
  3. Step 3: Cross multiply
    331,854.89x = 457,999.08 × 188,636.46
  4. Step 4: Simplify right side
    331,854.89x = 86,395,325,134.46
  5. Step 5: Solve for x
    x = 86,395,325,134.46/331,854.89
  6. Step 6: Final answer
    x = 260,340.68

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1.5x scale

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.