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Finding the Fourth Proportional to 575,538.21, 863,374.01 and 191,321.46

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Solution

The fourth proportional to 575,538.21, 863,374.01 and 191,321.46 is: 287,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,538.21 : 863,374.01 = 191,321.46 : x
  2. Step 2: Convert to fraction form
    575,538.21/863,374.01 = 191,321.46/x
  3. Step 3: Cross multiply
    575,538.21x = 863,374.01 × 191,321.46
  4. Step 4: Simplify right side
    575,538.21x = 165,181,975,162.65
  5. Step 5: Solve for x
    x = 165,181,975,162.65/575,538.21
  6. Step 6: Final answer
    x = 287,004.36

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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.