Home / 811,025.80-1,216,538.70-367,793.80

Finding the Fourth Proportional to 811,025.80, 1,216,538.70 and 367,793.80

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Solution

The fourth proportional to 811,025.80, 1,216,538.70 and 367,793.80 is: 551,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,025.80 : 1,216,538.70 = 367,793.80 : x
  2. Step 2: Convert to fraction form
    811,025.80/1,216,538.70 = 367,793.80/x
  3. Step 3: Cross multiply
    811,025.80x = 1,216,538.70 × 367,793.80
  4. Step 4: Simplify right side
    811,025.80x = 447,435,391,320.06
  5. Step 5: Solve for x
    x = 447,435,391,320.06/811,025.80
  6. Step 6: Final answer
    x = 551,690.70

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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.