Home / 822,086.60-1,233,129.90-261,177.80

Finding the Fourth Proportional to 822,086.60, 1,233,129.90 and 261,177.80

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Solution

The fourth proportional to 822,086.60, 1,233,129.90 and 261,177.80 is: 391,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,086.60 : 1,233,129.90 = 261,177.80 : x
  2. Step 2: Convert to fraction form
    822,086.60/1,233,129.90 = 261,177.80/x
  3. Step 3: Cross multiply
    822,086.60x = 1,233,129.90 × 261,177.80
  4. Step 4: Simplify right side
    822,086.60x = 322,066,154,396.22
  5. Step 5: Solve for x
    x = 322,066,154,396.22/822,086.60
  6. Step 6: Final answer
    x = 391,766.70

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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.