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Finding the Fourth Proportional to 583,405.31, 875,107.97 and 189,421.31

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Solution

The fourth proportional to 583,405.31, 875,107.97 and 189,421.31 is: 284,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,405.31 : 875,107.97 = 189,421.31 : x
  2. Step 2: Convert to fraction form
    583,405.31/875,107.97 = 189,421.31/x
  3. Step 3: Cross multiply
    583,405.31x = 875,107.97 × 189,421.31
  4. Step 4: Simplify right side
    583,405.31x = 165,764,100,019.83
  5. Step 5: Solve for x
    x = 165,764,100,019.83/583,405.31
  6. Step 6: Final answer
    x = 284,131.97

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Similar ratio
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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.