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Finding the Fourth Proportional to 404,745.06, 607,062.20 and 120,479.49

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Solution

The fourth proportional to 404,745.06, 607,062.20 and 120,479.49 is: 180,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,745.06 : 607,062.20 = 120,479.49 : x
  2. Step 2: Convert to fraction form
    404,745.06/607,062.20 = 120,479.49/x
  3. Step 3: Cross multiply
    404,745.06x = 607,062.20 × 120,479.49
  4. Step 4: Simplify right side
    404,745.06x = 73,138,543,651.88
  5. Step 5: Solve for x
    x = 73,138,543,651.88/404,745.06
  6. Step 6: Final answer
    x = 180,702.75

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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.