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Finding the Fourth Proportional to 367,415.70, 551,123.55 and 272,937.30

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Solution

The fourth proportional to 367,415.70, 551,123.55 and 272,937.30 is: 409,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,415.70 : 551,123.55 = 272,937.30 : x
  2. Step 2: Convert to fraction form
    367,415.70/551,123.55 = 272,937.30/x
  3. Step 3: Cross multiply
    367,415.70x = 551,123.55 × 272,937.30
  4. Step 4: Simplify right side
    367,415.70x = 150,422,173,703.42
  5. Step 5: Solve for x
    x = 150,422,173,703.42/367,415.70
  6. Step 6: Final answer
    x = 409,405.95

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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.