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Finding the Fourth Proportional to 467,354.48, 644,994.71 and 276,429.38

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Solution

The fourth proportional to 467,354.48, 644,994.71 and 276,429.38 is: 381,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,354.48 : 644,994.71 = 276,429.38 : x
  2. Step 2: Convert to fraction form
    467,354.48/644,994.71 = 276,429.38/x
  3. Step 3: Cross multiply
    467,354.48x = 644,994.71 × 276,429.38
  4. Step 4: Simplify right side
    467,354.48x = 178,295,486,406.43
  5. Step 5: Solve for x
    x = 178,295,486,406.43/467,354.48
  6. Step 6: Final answer
    x = 381,499.47

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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.