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Finding the Fourth Proportional to 383,768.15, 529,694.97 and 261,462.92

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Solution

The fourth proportional to 383,768.15, 529,694.97 and 261,462.92 is: 360,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,768.15 : 529,694.97 = 261,462.92 : x
  2. Step 2: Convert to fraction form
    383,768.15/529,694.97 = 261,462.92/x
  3. Step 3: Cross multiply
    383,768.15x = 529,694.97 × 261,462.92
  4. Step 4: Simplify right side
    383,768.15x = 138,495,593,565.51
  5. Step 5: Solve for x
    x = 138,495,593,565.51/383,768.15
  6. Step 6: Final answer
    x = 360,883.50

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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.