Home / 521,839.20-782,831.70-222,317.40

Finding the Fourth Proportional to 521,839.20, 782,831.70 and 222,317.40

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Solution

The fourth proportional to 521,839.20, 782,831.70 and 222,317.40 is: 333,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,839.20 : 782,831.70 = 222,317.40 : x
  2. Step 2: Convert to fraction form
    521,839.20/782,831.70 = 222,317.40/x
  3. Step 3: Cross multiply
    521,839.20x = 782,831.70 × 222,317.40
  4. Step 4: Simplify right side
    521,839.20x = 174,037,108,181.58
  5. Step 5: Solve for x
    x = 174,037,108,181.58/521,839.20
  6. Step 6: Final answer
    x = 333,507.16

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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.