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Finding the Fourth Proportional to 467,012.39, 644,492.90 and 276,189.35

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Solution

The fourth proportional to 467,012.39, 644,492.90 and 276,189.35 is: 381,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,012.39 : 644,492.90 = 276,189.35 : x
  2. Step 2: Convert to fraction form
    467,012.39/644,492.90 = 276,189.35/x
  3. Step 3: Cross multiply
    467,012.39x = 644,492.90 × 276,189.35
  4. Step 4: Simplify right side
    467,012.39x = 178,002,072,598.62
  5. Step 5: Solve for x
    x = 178,002,072,598.62/467,012.39
  6. Step 6: Final answer
    x = 381,150.65

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1.5x scale

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.