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Finding the Fourth Proportional to 376,863.12, 520,051.86 and 207,064.44

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Solution

The fourth proportional to 376,863.12, 520,051.86 and 207,064.44 is: 285,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,863.12 : 520,051.86 = 207,064.44 : x
  2. Step 2: Convert to fraction form
    376,863.12/520,051.86 = 207,064.44/x
  3. Step 3: Cross multiply
    376,863.12x = 520,051.86 × 207,064.44
  4. Step 4: Simplify right side
    376,863.12x = 107,684,247,161.86
  5. Step 5: Solve for x
    x = 107,684,247,161.86/376,863.12
  6. Step 6: Final answer
    x = 285,738.35

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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.