Home / 811,994.10-1,217,991.15-251,085.30

Finding the Fourth Proportional to 811,994.10, 1,217,991.15 and 251,085.30

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Solution

The fourth proportional to 811,994.10, 1,217,991.15 and 251,085.30 is: 376,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,994.10 : 1,217,991.15 = 251,085.30 : x
  2. Step 2: Convert to fraction form
    811,994.10/1,217,991.15 = 251,085.30/x
  3. Step 3: Cross multiply
    811,994.10x = 1,217,991.15 × 251,085.30
  4. Step 4: Simplify right side
    811,994.10x = 305,819,673,295.10
  5. Step 5: Solve for x
    x = 305,819,673,295.10/811,994.10
  6. Step 6: Final answer
    x = 376,627.95

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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.