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Finding the Fourth Proportional to 343,909.95, 474,652.20 and 200,669.64

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Solution

The fourth proportional to 343,909.95, 474,652.20 and 200,669.64 is: 276,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,909.95 : 474,652.20 = 200,669.64 : x
  2. Step 2: Convert to fraction form
    343,909.95/474,652.20 = 200,669.64/x
  3. Step 3: Cross multiply
    343,909.95x = 474,652.20 × 200,669.64
  4. Step 4: Simplify right side
    343,909.95x = 95,248,286,099.21
  5. Step 5: Solve for x
    x = 95,248,286,099.21/343,909.95
  6. Step 6: Final answer
    x = 276,957.05

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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.