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Finding the Fourth Proportional to 330,891.48, 456,634.80 and 179,988.48

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Solution

The fourth proportional to 330,891.48, 456,634.80 and 179,988.48 is: 248,386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,891.48 : 456,634.80 = 179,988.48 : x
  2. Step 2: Convert to fraction form
    330,891.48/456,634.80 = 179,988.48/x
  3. Step 3: Cross multiply
    330,891.48x = 456,634.80 × 179,988.48
  4. Step 4: Simplify right side
    330,891.48x = 82,189,003,567.10
  5. Step 5: Solve for x
    x = 82,189,003,567.10/330,891.48
  6. Step 6: Final answer
    x = 248,386.58

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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.