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Finding the Fourth Proportional to 496,699.26, 685,459.65 and 351,764.34

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Solution

The fourth proportional to 496,699.26, 685,459.65 and 351,764.34 is: 485,445.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,699.26 : 685,459.65 = 351,764.34 : x
  2. Step 2: Convert to fraction form
    496,699.26/685,459.65 = 351,764.34/x
  3. Step 3: Cross multiply
    496,699.26x = 685,459.65 × 351,764.34
  4. Step 4: Simplify right side
    496,699.26x = 241,120,261,378.88
  5. Step 5: Solve for x
    x = 241,120,261,378.88/496,699.26
  6. Step 6: Final answer
    x = 485,445.18

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1.5x scale

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.