Home / 809,263.20-1,213,894.80-510,081.60

Finding the Fourth Proportional to 809,263.20, 1,213,894.80 and 510,081.60

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Solution

The fourth proportional to 809,263.20, 1,213,894.80 and 510,081.60 is: 765,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,263.20 : 1,213,894.80 = 510,081.60 : x
  2. Step 2: Convert to fraction form
    809,263.20/1,213,894.80 = 510,081.60/x
  3. Step 3: Cross multiply
    809,263.20x = 1,213,894.80 × 510,081.60
  4. Step 4: Simplify right side
    809,263.20x = 619,185,401,815.68
  5. Step 5: Solve for x
    x = 619,185,401,815.68/809,263.20
  6. Step 6: Final answer
    x = 765,122.40

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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.