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Finding the Fourth Proportional to 663,936.60, 994,592.70 and 363,880.20

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Solution

The fourth proportional to 663,936.60, 994,592.70 and 363,880.20 is: 545,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,936.60 : 994,592.70 = 363,880.20 : x
  2. Step 2: Convert to fraction form
    663,936.60/994,592.70 = 363,880.20/x
  3. Step 3: Cross multiply
    663,936.60x = 994,592.70 × 363,880.20
  4. Step 4: Simplify right side
    663,936.60x = 361,912,590,594.54
  5. Step 5: Solve for x
    x = 361,912,590,594.54/663,936.60
  6. Step 6: Final answer
    x = 545,101.13

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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.