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Finding the Fourth Proportional to 441,062.28, 608,441.63 and 288,189.90

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Solution

The fourth proportional to 441,062.28, 608,441.63 and 288,189.90 is: 397,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,062.28 : 608,441.63 = 288,189.90 : x
  2. Step 2: Convert to fraction form
    441,062.28/608,441.63 = 288,189.90/x
  3. Step 3: Cross multiply
    441,062.28x = 608,441.63 × 288,189.90
  4. Step 4: Simplify right side
    441,062.28x = 175,346,731,064.59
  5. Step 5: Solve for x
    x = 175,346,731,064.59/441,062.28
  6. Step 6: Final answer
    x = 397,555.49

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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.