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Finding the Fourth Proportional to 404,734.80, 606,996.33 and 120,348.75

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Solution

The fourth proportional to 404,734.80, 606,996.33 and 120,348.75 is: 180,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,734.80 : 606,996.33 = 120,348.75 : x
  2. Step 2: Convert to fraction form
    404,734.80/606,996.33 = 120,348.75/x
  3. Step 3: Cross multiply
    404,734.80x = 606,996.33 × 120,348.75
  4. Step 4: Simplify right side
    404,734.80x = 73,051,249,570.09
  5. Step 5: Solve for x
    x = 73,051,249,570.09/404,734.80
  6. Step 6: Final answer
    x = 180,491.64

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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.