Home / 886,680.56-1,330,207.74-287,595.11

Finding the Fourth Proportional to 886,680.56, 1,330,207.74 and 287,595.11

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Solution

The fourth proportional to 886,680.56, 1,330,207.74 and 287,595.11 is: 431,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,680.56 : 1,330,207.74 = 287,595.11 : x
  2. Step 2: Convert to fraction form
    886,680.56/1,330,207.74 = 287,595.11/x
  3. Step 3: Cross multiply
    886,680.56x = 1,330,207.74 × 287,595.11
  4. Step 4: Simplify right side
    886,680.56x = 382,561,234,657.11
  5. Step 5: Solve for x
    x = 382,561,234,657.11/886,680.56
  6. Step 6: Final answer
    x = 431,453.28

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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.