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Finding the Fourth Proportional to 331,697.70, 496,999.35 and 191,211.30

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Solution

The fourth proportional to 331,697.70, 496,999.35 and 191,211.30 is: 286,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,697.70 : 496,999.35 = 191,211.30 : x
  2. Step 2: Convert to fraction form
    331,697.70/496,999.35 = 191,211.30/x
  3. Step 3: Cross multiply
    331,697.70x = 496,999.35 × 191,211.30
  4. Step 4: Simplify right side
    331,697.70x = 95,031,891,812.66
  5. Step 5: Solve for x
    x = 95,031,891,812.66/331,697.70
  6. Step 6: Final answer
    x = 286,501.51

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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.