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Finding the Fourth Proportional to 490,561.24, 735,933.12 and 170,699.80

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Solution

The fourth proportional to 490,561.24, 735,933.12 and 170,699.80 is: 256,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,561.24 : 735,933.12 = 170,699.80 : x
  2. Step 2: Convert to fraction form
    490,561.24/735,933.12 = 170,699.80/x
  3. Step 3: Cross multiply
    490,561.24x = 735,933.12 × 170,699.80
  4. Step 4: Simplify right side
    490,561.24x = 125,623,636,397.38
  5. Step 5: Solve for x
    x = 125,623,636,397.38/490,561.24
  6. Step 6: Final answer
    x = 256,081.46

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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.