Home / 807,383.20-1,211,074.80-555,440.80

Finding the Fourth Proportional to 807,383.20, 1,211,074.80 and 555,440.80

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Solution

The fourth proportional to 807,383.20, 1,211,074.80 and 555,440.80 is: 833,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,383.20 : 1,211,074.80 = 555,440.80 : x
  2. Step 2: Convert to fraction form
    807,383.20/1,211,074.80 = 555,440.80/x
  3. Step 3: Cross multiply
    807,383.20x = 1,211,074.80 × 555,440.80
  4. Step 4: Simplify right side
    807,383.20x = 672,680,355,771.84
  5. Step 5: Solve for x
    x = 672,680,355,771.84/807,383.20
  6. Step 6: Final answer
    x = 833,161.20

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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.