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Finding the Fourth Proportional to 493,145.70, 739,499.85 and 226,987.80

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Solution

The fourth proportional to 493,145.70, 739,499.85 and 226,987.80 is: 340,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,145.70 : 739,499.85 = 226,987.80 : x
  2. Step 2: Convert to fraction form
    493,145.70/739,499.85 = 226,987.80/x
  3. Step 3: Cross multiply
    493,145.70x = 739,499.85 × 226,987.80
  4. Step 4: Simplify right side
    493,145.70x = 167,857,444,051.83
  5. Step 5: Solve for x
    x = 167,857,444,051.83/493,145.70
  6. Step 6: Final answer
    x = 340,381.04

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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.