Home / 381,927.86-527,064.05-209,849.43

Finding the Fourth Proportional to 381,927.86, 527,064.05 and 209,849.43

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Solution

The fourth proportional to 381,927.86, 527,064.05 and 209,849.43 is: 289,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,927.86 : 527,064.05 = 209,849.43 : x
  2. Step 2: Convert to fraction form
    381,927.86/527,064.05 = 209,849.43/x
  3. Step 3: Cross multiply
    381,927.86x = 527,064.05 × 209,849.43
  4. Step 4: Simplify right side
    381,927.86x = 110,604,089,416.74
  5. Step 5: Solve for x
    x = 110,604,089,416.74/381,927.86
  6. Step 6: Final answer
    x = 289,594.19

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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.