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Finding the Fourth Proportional to 330,649.20, 456,283.20 and 179,746.20

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Solution

The fourth proportional to 330,649.20, 456,283.20 and 179,746.20 is: 248,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,649.20 : 456,283.20 = 179,746.20 : x
  2. Step 2: Convert to fraction form
    330,649.20/456,283.20 = 179,746.20/x
  3. Step 3: Cross multiply
    330,649.20x = 456,283.20 × 179,746.20
  4. Step 4: Simplify right side
    330,649.20x = 82,015,171,323.84
  5. Step 5: Solve for x
    x = 82,015,171,323.84/330,649.20
  6. Step 6: Final answer
    x = 248,042.85

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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.