Home / 808,215.10-1,213,634.85-543,150.70

Finding the Fourth Proportional to 808,215.10, 1,213,634.85 and 543,150.70

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Solution

The fourth proportional to 808,215.10, 1,213,634.85 and 543,150.70 is: 815,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,215.10 : 1,213,634.85 = 543,150.70 : x
  2. Step 2: Convert to fraction form
    808,215.10/1,213,634.85 = 543,150.70/x
  3. Step 3: Cross multiply
    808,215.10x = 1,213,634.85 × 543,150.70
  4. Step 4: Simplify right side
    808,215.10x = 659,186,618,321.90
  5. Step 5: Solve for x
    x = 659,186,618,321.90/808,215.10
  6. Step 6: Final answer
    x = 815,607.90

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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.