Home / 808,216.10-1,213,636.35-543,151.70

Finding the Fourth Proportional to 808,216.10, 1,213,636.35 and 543,151.70

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Solution

The fourth proportional to 808,216.10, 1,213,636.35 and 543,151.70 is: 815,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,216.10 : 1,213,636.35 = 543,151.70 : x
  2. Step 2: Convert to fraction form
    808,216.10/1,213,636.35 = 543,151.70/x
  3. Step 3: Cross multiply
    808,216.10x = 1,213,636.35 × 543,151.70
  4. Step 4: Simplify right side
    808,216.10x = 659,188,646,684.30
  5. Step 5: Solve for x
    x = 659,188,646,684.30/808,216.10
  6. Step 6: Final answer
    x = 815,609.40

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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.