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Finding the Fourth Proportional to 411,037.20, 617,189.40 and 224,413.20

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Solution

The fourth proportional to 411,037.20, 617,189.40 and 224,413.20 is: 336,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,037.20 : 617,189.40 = 224,413.20 : x
  2. Step 2: Convert to fraction form
    411,037.20/617,189.40 = 224,413.20/x
  3. Step 3: Cross multiply
    411,037.20x = 617,189.40 × 224,413.20
  4. Step 4: Simplify right side
    411,037.20x = 138,505,448,260.08
  5. Step 5: Solve for x
    x = 138,505,448,260.08/411,037.20
  6. Step 6: Final answer
    x = 336,965.73

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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.