Home / 376,931.15-520,158.94-207,161.63

Finding the Fourth Proportional to 376,931.15, 520,158.94 and 207,161.63

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Solution

The fourth proportional to 376,931.15, 520,158.94 and 207,161.63 is: 285,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,931.15 : 520,158.94 = 207,161.63 : x
  2. Step 2: Convert to fraction form
    376,931.15/520,158.94 = 207,161.63/x
  3. Step 3: Cross multiply
    376,931.15x = 520,158.94 × 207,161.63
  4. Step 4: Simplify right side
    376,931.15x = 107,756,973,869.47
  5. Step 5: Solve for x
    x = 107,756,973,869.47/376,931.15
  6. Step 6: Final answer
    x = 285,879.73

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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.