Home / 381,569.27-526,555.89-209,486.39

Finding the Fourth Proportional to 381,569.27, 526,555.89 and 209,486.39

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Solution

The fourth proportional to 381,569.27, 526,555.89 and 209,486.39 is: 289,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,569.27 : 526,555.89 = 209,486.39 : x
  2. Step 2: Convert to fraction form
    381,569.27/526,555.89 = 209,486.39/x
  3. Step 3: Cross multiply
    381,569.27x = 526,555.89 × 209,486.39
  4. Step 4: Simplify right side
    381,569.27x = 110,306,289,896.56
  5. Step 5: Solve for x
    x = 110,306,289,896.56/381,569.27
  6. Step 6: Final answer
    x = 289,085.89

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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.