Home / 809,266.20-1,213,461.90-335,999.40

Finding the Fourth Proportional to 809,266.20, 1,213,461.90 and 335,999.40

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Solution

The fourth proportional to 809,266.20, 1,213,461.90 and 335,999.40 is: 503,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,266.20 : 1,213,461.90 = 335,999.40 : x
  2. Step 2: Convert to fraction form
    809,266.20/1,213,461.90 = 335,999.40/x
  3. Step 3: Cross multiply
    809,266.20x = 1,213,461.90 × 335,999.40
  4. Step 4: Simplify right side
    809,266.20x = 407,722,470,322.86
  5. Step 5: Solve for x
    x = 407,722,470,322.86/809,266.20
  6. Step 6: Final answer
    x = 503,817.50

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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.