Home / 886,919.70-1,330,379.55-255,854.10

Finding the Fourth Proportional to 886,919.70, 1,330,379.55 and 255,854.10

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Solution

The fourth proportional to 886,919.70, 1,330,379.55 and 255,854.10 is: 383,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,919.70 : 1,330,379.55 = 255,854.10 : x
  2. Step 2: Convert to fraction form
    886,919.70/1,330,379.55 = 255,854.10/x
  3. Step 3: Cross multiply
    886,919.70x = 1,330,379.55 × 255,854.10
  4. Step 4: Simplify right side
    886,919.70x = 340,383,062,423.66
  5. Step 5: Solve for x
    x = 340,383,062,423.66/886,919.70
  6. Step 6: Final answer
    x = 383,781.15

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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.