Home / 816,067.60-1,224,101.40-342,595.60

Finding the Fourth Proportional to 816,067.60, 1,224,101.40 and 342,595.60

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Solution

The fourth proportional to 816,067.60, 1,224,101.40 and 342,595.60 is: 513,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,067.60 : 1,224,101.40 = 342,595.60 : x
  2. Step 2: Convert to fraction form
    816,067.60/1,224,101.40 = 342,595.60/x
  3. Step 3: Cross multiply
    816,067.60x = 1,224,101.40 × 342,595.60
  4. Step 4: Simplify right side
    816,067.60x = 419,371,753,593.84
  5. Step 5: Solve for x
    x = 419,371,753,593.84/816,067.60
  6. Step 6: Final answer
    x = 513,893.40

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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.