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Finding the Fourth Proportional to 575,539.21, 863,375.51 and 191,322.46

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Solution

The fourth proportional to 575,539.21, 863,375.51 and 191,322.46 is: 287,005.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,539.21 : 863,375.51 = 191,322.46 : x
  2. Step 2: Convert to fraction form
    575,539.21/863,375.51 = 191,322.46/x
  3. Step 3: Cross multiply
    575,539.21x = 863,375.51 × 191,322.46
  4. Step 4: Simplify right side
    575,539.21x = 165,183,126,476.96
  5. Step 5: Solve for x
    x = 165,183,126,476.96/575,539.21
  6. Step 6: Final answer
    x = 287,005.86

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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.