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Finding the Fourth Proportional to 366,987.60, 550,481.40 and 117,694.80

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Solution

The fourth proportional to 366,987.60, 550,481.40 and 117,694.80 is: 176,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,987.60 : 550,481.40 = 117,694.80 : x
  2. Step 2: Convert to fraction form
    366,987.60/550,481.40 = 117,694.80/x
  3. Step 3: Cross multiply
    366,987.60x = 550,481.40 × 117,694.80
  4. Step 4: Simplify right side
    366,987.60x = 64,788,798,276.72
  5. Step 5: Solve for x
    x = 64,788,798,276.72/366,987.60
  6. Step 6: Final answer
    x = 176,542.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.