Home / 455,936.10-683,904.15-140,489.70

Finding the Fourth Proportional to 455,936.10, 683,904.15 and 140,489.70

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Solution

The fourth proportional to 455,936.10, 683,904.15 and 140,489.70 is: 210,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,936.10 : 683,904.15 = 140,489.70 : x
  2. Step 2: Convert to fraction form
    455,936.10/683,904.15 = 140,489.70/x
  3. Step 3: Cross multiply
    455,936.10x = 683,904.15 × 140,489.70
  4. Step 4: Simplify right side
    455,936.10x = 96,081,488,862.26
  5. Step 5: Solve for x
    x = 96,081,488,862.26/455,936.10
  6. Step 6: Final answer
    x = 210,734.55

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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.