Home / 825,581.40-1,237,205.70-509,098.20

Finding the Fourth Proportional to 825,581.40, 1,237,205.70 and 509,098.20

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Solution

The fourth proportional to 825,581.40, 1,237,205.70 and 509,098.20 is: 762,928.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,581.40 : 1,237,205.70 = 509,098.20 : x
  2. Step 2: Convert to fraction form
    825,581.40/1,237,205.70 = 509,098.20/x
  3. Step 3: Cross multiply
    825,581.40x = 1,237,205.70 × 509,098.20
  4. Step 4: Simplify right side
    825,581.40x = 629,859,194,899.74
  5. Step 5: Solve for x
    x = 629,859,194,899.74/825,581.40
  6. Step 6: Final answer
    x = 762,928.03

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Double scale
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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.