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Finding the Fourth Proportional to 361,435.19, 498,783.50 and 200,292.90

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Solution

The fourth proportional to 361,435.19, 498,783.50 and 200,292.90 is: 276,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,435.19 : 498,783.50 = 200,292.90 : x
  2. Step 2: Convert to fraction form
    361,435.19/498,783.50 = 200,292.90/x
  3. Step 3: Cross multiply
    361,435.19x = 498,783.50 × 200,292.90
  4. Step 4: Simplify right side
    361,435.19x = 99,902,792,685.69
  5. Step 5: Solve for x
    x = 99,902,792,685.69/361,435.19
  6. Step 6: Final answer
    x = 276,405.83

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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.