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Finding the Fourth Proportional to 321,037.98, 443,037.06 and 185,069.46

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Solution

The fourth proportional to 321,037.98, 443,037.06 and 185,069.46 is: 255,398.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,037.98 : 443,037.06 = 185,069.46 : x
  2. Step 2: Convert to fraction form
    321,037.98/443,037.06 = 185,069.46/x
  3. Step 3: Cross multiply
    321,037.98x = 443,037.06 × 185,069.46
  4. Step 4: Simplify right side
    321,037.98x = 81,992,629,454.19
  5. Step 5: Solve for x
    x = 81,992,629,454.19/321,037.98
  6. Step 6: Final answer
    x = 255,398.53

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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.