Home / 808,361.79-1,115,523.74-445,819.16

Finding the Fourth Proportional to 808,361.79, 1,115,523.74 and 445,819.16

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Solution

The fourth proportional to 808,361.79, 1,115,523.74 and 445,819.16 is: 615,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,361.79 : 1,115,523.74 = 445,819.16 : x
  2. Step 2: Convert to fraction form
    808,361.79/1,115,523.74 = 445,819.16/x
  3. Step 3: Cross multiply
    808,361.79x = 1,115,523.74 × 445,819.16
  4. Step 4: Simplify right side
    808,361.79x = 497,321,848,920.14
  5. Step 5: Solve for x
    x = 497,321,848,920.14/808,361.79
  6. Step 6: Final answer
    x = 615,221.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.