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Finding the Fourth Proportional to 361,485.63, 498,836.55 and 200,343.42

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Solution

The fourth proportional to 361,485.63, 498,836.55 and 200,343.42 is: 276,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,485.63 : 498,836.55 = 200,343.42 : x
  2. Step 2: Convert to fraction form
    361,485.63/498,836.55 = 200,343.42/x
  3. Step 3: Cross multiply
    361,485.63x = 498,836.55 × 200,343.42
  4. Step 4: Simplify right side
    361,485.63x = 99,938,620,448.00
  5. Step 5: Solve for x
    x = 99,938,620,448.00/361,485.63
  6. Step 6: Final answer
    x = 276,466.37

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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.