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Finding the Fourth Proportional to 330,642.58, 456,291.30 and 179,742.82

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Solution

The fourth proportional to 330,642.58, 456,291.30 and 179,742.82 is: 248,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,642.58 : 456,291.30 = 179,742.82 : x
  2. Step 2: Convert to fraction form
    330,642.58/456,291.30 = 179,742.82/x
  3. Step 3: Cross multiply
    330,642.58x = 456,291.30 × 179,742.82
  4. Step 4: Simplify right side
    330,642.58x = 82,015,085,003.47
  5. Step 5: Solve for x
    x = 82,015,085,003.47/330,642.58
  6. Step 6: Final answer
    x = 248,047.56

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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.