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Finding the Fourth Proportional to 555,189.39, 832,659.56 and 255,382.05

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Solution

The fourth proportional to 555,189.39, 832,659.56 and 255,382.05 is: 383,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,189.39 : 832,659.56 = 255,382.05 : x
  2. Step 2: Convert to fraction form
    555,189.39/832,659.56 = 255,382.05/x
  3. Step 3: Cross multiply
    555,189.39x = 832,659.56 × 255,382.05
  4. Step 4: Simplify right side
    555,189.39x = 212,646,304,107.99
  5. Step 5: Solve for x
    x = 212,646,304,107.99/555,189.39
  6. Step 6: Final answer
    x = 383,015.79

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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.