Home / 823,902.30-1,235,853.45-291,440.70

Finding the Fourth Proportional to 823,902.30, 1,235,853.45 and 291,440.70

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Solution

The fourth proportional to 823,902.30, 1,235,853.45 and 291,440.70 is: 437,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,902.30 : 1,235,853.45 = 291,440.70 : x
  2. Step 2: Convert to fraction form
    823,902.30/1,235,853.45 = 291,440.70/x
  3. Step 3: Cross multiply
    823,902.30x = 1,235,853.45 × 291,440.70
  4. Step 4: Simplify right side
    823,902.30x = 360,177,994,565.42
  5. Step 5: Solve for x
    x = 360,177,994,565.42/823,902.30
  6. Step 6: Final answer
    x = 437,161.05

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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.