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Finding the Fourth Proportional to 253,658.37, 379,883.61 and 146,817.35

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Solution

The fourth proportional to 253,658.37, 379,883.61 and 146,817.35 is: 219,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,658.37 : 379,883.61 = 146,817.35 : x
  2. Step 2: Convert to fraction form
    253,658.37/379,883.61 = 146,817.35/x
  3. Step 3: Cross multiply
    253,658.37x = 379,883.61 × 146,817.35
  4. Step 4: Simplify right side
    253,658.37x = 55,773,503,029.22
  5. Step 5: Solve for x
    x = 55,773,503,029.22/253,658.37
  6. Step 6: Final answer
    x = 219,876.45

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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.