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Finding the Fourth Proportional to 406,280.80, 609,518.40 and 195,745.60

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Solution

The fourth proportional to 406,280.80, 609,518.40 and 195,745.60 is: 293,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,280.80 : 609,518.40 = 195,745.60 : x
  2. Step 2: Convert to fraction form
    406,280.80/609,518.40 = 195,745.60/x
  3. Step 3: Cross multiply
    406,280.80x = 609,518.40 × 195,745.60
  4. Step 4: Simplify right side
    406,280.80x = 119,310,544,919.04
  5. Step 5: Solve for x
    x = 119,310,544,919.04/406,280.80
  6. Step 6: Final answer
    x = 293,665.23

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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.