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Finding the Fourth Proportional to 503,072.78, 754,349.49 and 148,040.73

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Solution

The fourth proportional to 503,072.78, 754,349.49 and 148,040.73 is: 221,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,072.78 : 754,349.49 = 148,040.73 : x
  2. Step 2: Convert to fraction form
    503,072.78/754,349.49 = 148,040.73/x
  3. Step 3: Cross multiply
    503,072.78x = 754,349.49 × 148,040.73
  4. Step 4: Simplify right side
    503,072.78x = 111,674,449,174.73
  5. Step 5: Solve for x
    x = 111,674,449,174.73/503,072.78
  6. Step 6: Final answer
    x = 221,984.68

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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.