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Finding the Fourth Proportional to 363,946.80, 545,920.20 and 186,799.80

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Solution

The fourth proportional to 363,946.80, 545,920.20 and 186,799.80 is: 280,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,946.80 : 545,920.20 = 186,799.80 : x
  2. Step 2: Convert to fraction form
    363,946.80/545,920.20 = 186,799.80/x
  3. Step 3: Cross multiply
    363,946.80x = 545,920.20 × 186,799.80
  4. Step 4: Simplify right side
    363,946.80x = 101,977,784,175.96
  5. Step 5: Solve for x
    x = 101,977,784,175.96/363,946.80
  6. Step 6: Final answer
    x = 280,199.70

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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.