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Finding the Fourth Proportional to 546,761.18, 754,530.99 and 320,406.50

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Solution

The fourth proportional to 546,761.18, 754,530.99 and 320,406.50 is: 442,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,761.18 : 754,530.99 = 320,406.50 : x
  2. Step 2: Convert to fraction form
    546,761.18/754,530.99 = 320,406.50/x
  3. Step 3: Cross multiply
    546,761.18x = 754,530.99 × 320,406.50
  4. Step 4: Simplify right side
    546,761.18x = 241,756,633,647.44
  5. Step 5: Solve for x
    x = 241,756,633,647.44/546,761.18
  6. Step 6: Final answer
    x = 442,161.30

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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.