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Finding the Fourth Proportional to 606,613.70, 909,834.14 and 207,272.90

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Solution

The fourth proportional to 606,613.70, 909,834.14 and 207,272.90 is: 310,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,613.70 : 909,834.14 = 207,272.90 : x
  2. Step 2: Convert to fraction form
    606,613.70/909,834.14 = 207,272.90/x
  3. Step 3: Cross multiply
    606,613.70x = 909,834.14 × 207,272.90
  4. Step 4: Simplify right side
    606,613.70x = 188,583,960,716.81
  5. Step 5: Solve for x
    x = 188,583,960,716.81/606,613.70
  6. Step 6: Final answer
    x = 310,879.82

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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.