Home / 808,362.10-1,115,524.17-445,819.47

Finding the Fourth Proportional to 808,362.10, 1,115,524.17 and 445,819.47

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Solution

The fourth proportional to 808,362.10, 1,115,524.17 and 445,819.47 is: 615,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,362.10 : 1,115,524.17 = 445,819.47 : x
  2. Step 2: Convert to fraction form
    808,362.10/1,115,524.17 = 445,819.47/x
  3. Step 3: Cross multiply
    808,362.10x = 1,115,524.17 × 445,819.47
  4. Step 4: Simplify right side
    808,362.10x = 497,322,394,241.59
  5. Step 5: Solve for x
    x = 497,322,394,241.59/808,362.10
  6. Step 6: Final answer
    x = 615,222.30

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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.