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Finding the Fourth Proportional to 400,104.93, 551,258.69 and 263,898.57

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Solution

The fourth proportional to 400,104.93, 551,258.69 and 263,898.57 is: 363,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,104.93 : 551,258.69 = 263,898.57 : x
  2. Step 2: Convert to fraction form
    400,104.93/551,258.69 = 263,898.57/x
  3. Step 3: Cross multiply
    400,104.93x = 551,258.69 × 263,898.57
  4. Step 4: Simplify right side
    400,104.93x = 145,476,378,671.58
  5. Step 5: Solve for x
    x = 145,476,378,671.58/400,104.93
  6. Step 6: Final answer
    x = 363,595.57

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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.