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Finding the Fourth Proportional to 301,879.03, 416,584.28 and 172,813.15

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Solution

The fourth proportional to 301,879.03, 416,584.28 and 172,813.15 is: 238,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,879.03 : 416,584.28 = 172,813.15 : x
  2. Step 2: Convert to fraction form
    301,879.03/416,584.28 = 172,813.15/x
  3. Step 3: Cross multiply
    301,879.03x = 416,584.28 × 172,813.15
  4. Step 4: Simplify right side
    301,879.03x = 71,991,240,409.80
  5. Step 5: Solve for x
    x = 71,991,240,409.80/301,879.03
  6. Step 6: Final answer
    x = 238,477.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.