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Finding the Fourth Proportional to 287,223.99, 396,111.06 and 179,803.80

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Solution

The fourth proportional to 287,223.99, 396,111.06 and 179,803.80 is: 247,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,223.99 : 396,111.06 = 179,803.80 : x
  2. Step 2: Convert to fraction form
    287,223.99/396,111.06 = 179,803.80/x
  3. Step 3: Cross multiply
    287,223.99x = 396,111.06 × 179,803.80
  4. Step 4: Simplify right side
    287,223.99x = 71,222,273,810.03
  5. Step 5: Solve for x
    x = 71,222,273,810.03/287,223.99
  6. Step 6: Final answer
    x = 247,967.71

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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.