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Finding the Fourth Proportional to 404,727.94, 606,986.19 and 120,341.92

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Solution

The fourth proportional to 404,727.94, 606,986.19 and 120,341.92 is: 180,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,727.94 : 606,986.19 = 120,341.92 : x
  2. Step 2: Convert to fraction form
    404,727.94/606,986.19 = 120,341.92/x
  3. Step 3: Cross multiply
    404,727.94x = 606,986.19 × 120,341.92
  4. Step 4: Simplify right side
    404,727.94x = 73,045,880,483.15
  5. Step 5: Solve for x
    x = 73,045,880,483.15/404,727.94
  6. Step 6: Final answer
    x = 180,481.44

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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.