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Finding the Fourth Proportional to 490,628.91, 735,499.89 and 175,010.79

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Solution

The fourth proportional to 490,628.91, 735,499.89 and 175,010.79 is: 262,357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,628.91 : 735,499.89 = 175,010.79 : x
  2. Step 2: Convert to fraction form
    490,628.91/735,499.89 = 175,010.79/x
  3. Step 3: Cross multiply
    490,628.91x = 735,499.89 × 175,010.79
  4. Step 4: Simplify right side
    490,628.91x = 128,720,416,793.81
  5. Step 5: Solve for x
    x = 128,720,416,793.81/490,628.91
  6. Step 6: Final answer
    x = 262,357.99

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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.