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Finding the Fourth Proportional to 493,690.40, 740,103.60 and 335,405.60

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Solution

The fourth proportional to 493,690.40, 740,103.60 and 335,405.60 is: 502,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,690.40 : 740,103.60 = 335,405.60 : x
  2. Step 2: Convert to fraction form
    493,690.40/740,103.60 = 335,405.60/x
  3. Step 3: Cross multiply
    493,690.40x = 740,103.60 × 335,405.60
  4. Step 4: Simplify right side
    493,690.40x = 248,234,892,020.16
  5. Step 5: Solve for x
    x = 248,234,892,020.16/493,690.40
  6. Step 6: Final answer
    x = 502,814.91

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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.