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Finding the Fourth Proportional to 556,353.09, 834,311.28 and 196,447.20

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Solution

The fourth proportional to 556,353.09, 834,311.28 and 196,447.20 is: 294,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,353.09 : 834,311.28 = 196,447.20 : x
  2. Step 2: Convert to fraction form
    556,353.09/834,311.28 = 196,447.20/x
  3. Step 3: Cross multiply
    556,353.09x = 834,311.28 × 196,447.20
  4. Step 4: Simplify right side
    556,353.09x = 163,898,114,884.42
  5. Step 5: Solve for x
    x = 163,898,114,884.42/556,353.09
  6. Step 6: Final answer
    x = 294,593.70

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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.