Home / 809,233.80-1,214,849.10-509,713.80

Finding the Fourth Proportional to 809,233.80, 1,214,849.10 and 509,713.80

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Solution

The fourth proportional to 809,233.80, 1,214,849.10 and 509,713.80 is: 765,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,233.80 : 1,214,849.10 = 509,713.80 : x
  2. Step 2: Convert to fraction form
    809,233.80/1,214,849.10 = 509,713.80/x
  3. Step 3: Cross multiply
    809,233.80x = 1,214,849.10 × 509,713.80
  4. Step 4: Simplify right side
    809,233.80x = 619,225,351,187.58
  5. Step 5: Solve for x
    x = 619,225,351,187.58/809,233.80
  6. Step 6: Final answer
    x = 765,199.56

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Double scale
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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.