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Finding the Fourth Proportional to 503,049.42, 754,574.67 and 129,072.42

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Solution

The fourth proportional to 503,049.42, 754,574.67 and 129,072.42 is: 193,608.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,049.42 : 754,574.67 = 129,072.42 : x
  2. Step 2: Convert to fraction form
    503,049.42/754,574.67 = 129,072.42/x
  3. Step 3: Cross multiply
    503,049.42x = 754,574.67 × 129,072.42
  4. Step 4: Simplify right side
    503,049.42x = 97,394,778,727.60
  5. Step 5: Solve for x
    x = 97,394,778,727.60/503,049.42
  6. Step 6: Final answer
    x = 193,608.77

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Similar ratio
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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.