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Finding the Fourth Proportional to 496,858.98, 685,436.11 and 292,770.57

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Solution

The fourth proportional to 496,858.98, 685,436.11 and 292,770.57 is: 403,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,858.98 : 685,436.11 = 292,770.57 : x
  2. Step 2: Convert to fraction form
    496,858.98/685,436.11 = 292,770.57/x
  3. Step 3: Cross multiply
    496,858.98x = 685,436.11 × 292,770.57
  4. Step 4: Simplify right side
    496,858.98x = 200,675,520,623.28
  5. Step 5: Solve for x
    x = 200,675,520,623.28/496,858.98
  6. Step 6: Final answer
    x = 403,888.28

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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.