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Finding the Fourth Proportional to 415,999.69, 624,092.86 and 131,707.23

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Solution

The fourth proportional to 415,999.69, 624,092.86 and 131,707.23 is: 197,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,999.69 : 624,092.86 = 131,707.23 : x
  2. Step 2: Convert to fraction form
    415,999.69/624,092.86 = 131,707.23/x
  3. Step 3: Cross multiply
    415,999.69x = 624,092.86 × 131,707.23
  4. Step 4: Simplify right side
    415,999.69x = 82,197,541,853.38
  5. Step 5: Solve for x
    x = 82,197,541,853.38/415,999.69
  6. Step 6: Final answer
    x = 197,590.39

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1.5x scale

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.