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Finding the Fourth Proportional to 575,761.98, 863,455.85 and 191,407.67

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Solution

The fourth proportional to 575,761.98, 863,455.85 and 191,407.67 is: 287,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,761.98 : 863,455.85 = 191,407.67 : x
  2. Step 2: Convert to fraction form
    575,761.98/863,455.85 = 191,407.67/x
  3. Step 3: Cross multiply
    575,761.98x = 863,455.85 × 191,407.67
  4. Step 4: Simplify right side
    575,761.98x = 165,272,068,079.09
  5. Step 5: Solve for x
    x = 165,272,068,079.09/575,761.98
  6. Step 6: Final answer
    x = 287,049.29

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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.