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Finding the Fourth Proportional to 366,939.60, 550,409.40 and 117,646.80

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Solution

The fourth proportional to 366,939.60, 550,409.40 and 117,646.80 is: 176,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.60 : 550,409.40 = 117,646.80 : x
  2. Step 2: Convert to fraction form
    366,939.60/550,409.40 = 117,646.80/x
  3. Step 3: Cross multiply
    366,939.60x = 550,409.40 × 117,646.80
  4. Step 4: Simplify right side
    366,939.60x = 64,753,904,599.92
  5. Step 5: Solve for x
    x = 64,753,904,599.92/366,939.60
  6. Step 6: Final answer
    x = 176,470.20

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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.