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Finding the Fourth Proportional to 355,300.40, 532,777.80 and 197,361.20

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Solution

The fourth proportional to 355,300.40, 532,777.80 and 197,361.20 is: 295,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,300.40 : 532,777.80 = 197,361.20 : x
  2. Step 2: Convert to fraction form
    355,300.40/532,777.80 = 197,361.20/x
  3. Step 3: Cross multiply
    355,300.40x = 532,777.80 × 197,361.20
  4. Step 4: Simplify right side
    355,300.40x = 105,149,665,941.36
  5. Step 5: Solve for x
    x = 105,149,665,941.36/355,300.40
  6. Step 6: Final answer
    x = 295,945.81

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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.