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Finding the Fourth Proportional to 543,187.56, 749,589.48 and 301,480.32

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Solution

The fourth proportional to 543,187.56, 749,589.48 and 301,480.32 is: 416,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,187.56 : 749,589.48 = 301,480.32 : x
  2. Step 2: Convert to fraction form
    543,187.56/749,589.48 = 301,480.32/x
  3. Step 3: Cross multiply
    543,187.56x = 749,589.48 × 301,480.32
  4. Step 4: Simplify right side
    543,187.56x = 225,986,476,299.03
  5. Step 5: Solve for x
    x = 225,986,476,299.03/543,187.56
  6. Step 6: Final answer
    x = 416,037.65

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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.