Home / 816,073.20-1,224,109.80-606,121.20

Finding the Fourth Proportional to 816,073.20, 1,224,109.80 and 606,121.20

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Solution

The fourth proportional to 816,073.20, 1,224,109.80 and 606,121.20 is: 909,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,073.20 : 1,224,109.80 = 606,121.20 : x
  2. Step 2: Convert to fraction form
    816,073.20/1,224,109.80 = 606,121.20/x
  3. Step 3: Cross multiply
    816,073.20x = 1,224,109.80 × 606,121.20
  4. Step 4: Simplify right side
    816,073.20x = 741,958,900,907.76
  5. Step 5: Solve for x
    x = 741,958,900,907.76/816,073.20
  6. Step 6: Final answer
    x = 909,181.80

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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.