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Finding the Fourth Proportional to 863,781.11, 1,295,671.55 and 295,167.11

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Solution

The fourth proportional to 863,781.11, 1,295,671.55 and 295,167.11 is: 442,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,781.11 : 1,295,671.55 = 295,167.11 : x
  2. Step 2: Convert to fraction form
    863,781.11/1,295,671.55 = 295,167.11/x
  3. Step 3: Cross multiply
    863,781.11x = 1,295,671.55 × 295,167.11
  4. Step 4: Simplify right side
    863,781.11x = 382,439,626,922.72
  5. Step 5: Solve for x
    x = 382,439,626,922.72/863,781.11
  6. Step 6: Final answer
    x = 442,750.63

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Double scale
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Similar ratio
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1.5x scale

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.