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Finding the Fourth Proportional to 370,906.20, 556,359.30 and 202,361.40

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Solution

The fourth proportional to 370,906.20, 556,359.30 and 202,361.40 is: 303,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,906.20 : 556,359.30 = 202,361.40 : x
  2. Step 2: Convert to fraction form
    370,906.20/556,359.30 = 202,361.40/x
  3. Step 3: Cross multiply
    370,906.20x = 556,359.30 × 202,361.40
  4. Step 4: Simplify right side
    370,906.20x = 112,585,646,851.02
  5. Step 5: Solve for x
    x = 112,585,646,851.02/370,906.20
  6. Step 6: Final answer
    x = 303,542.10

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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.