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Finding the Fourth Proportional to 331,364.70, 497,111.85 and 141,824.70

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Solution

The fourth proportional to 331,364.70, 497,111.85 and 141,824.70 is: 212,764.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,364.70 : 497,111.85 = 141,824.70 : x
  2. Step 2: Convert to fraction form
    331,364.70/497,111.85 = 141,824.70/x
  3. Step 3: Cross multiply
    331,364.70x = 497,111.85 × 141,824.70
  4. Step 4: Simplify right side
    331,364.70x = 70,502,738,992.70
  5. Step 5: Solve for x
    x = 70,502,738,992.70/331,364.70
  6. Step 6: Final answer
    x = 212,764.78

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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.