Home / 810,394.16-1,215,591.78-211,353.80

Finding the Fourth Proportional to 810,394.16, 1,215,591.78 and 211,353.80

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Solution

The fourth proportional to 810,394.16, 1,215,591.78 and 211,353.80 is: 317,030.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,394.16 : 1,215,591.78 = 211,353.80 : x
  2. Step 2: Convert to fraction form
    810,394.16/1,215,591.78 = 211,353.80/x
  3. Step 3: Cross multiply
    810,394.16x = 1,215,591.78 × 211,353.80
  4. Step 4: Simplify right side
    810,394.16x = 256,919,941,951.76
  5. Step 5: Solve for x
    x = 256,919,941,951.76/810,394.16
  6. Step 6: Final answer
    x = 317,030.84

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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.