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Finding the Fourth Proportional to 404,890.74, 607,270.50 and 180,198.36

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Solution

The fourth proportional to 404,890.74, 607,270.50 and 180,198.36 is: 270,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,890.74 : 607,270.50 = 180,198.36 : x
  2. Step 2: Convert to fraction form
    404,890.74/607,270.50 = 180,198.36/x
  3. Step 3: Cross multiply
    404,890.74x = 607,270.50 × 180,198.36
  4. Step 4: Simplify right side
    404,890.74x = 109,429,148,176.38
  5. Step 5: Solve for x
    x = 109,429,148,176.38/404,890.74
  6. Step 6: Final answer
    x = 270,268.34

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1.5x scale

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.