Home / 381,303.65-526,181.38-209,217.33

Finding the Fourth Proportional to 381,303.65, 526,181.38 and 209,217.33

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Solution

The fourth proportional to 381,303.65, 526,181.38 and 209,217.33 is: 288,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,303.65 : 526,181.38 = 209,217.33 : x
  2. Step 2: Convert to fraction form
    381,303.65/526,181.38 = 209,217.33/x
  3. Step 3: Cross multiply
    381,303.65x = 526,181.38 × 209,217.33
  4. Step 4: Simplify right side
    381,303.65x = 110,086,260,788.41
  5. Step 5: Solve for x
    x = 110,086,260,788.41/381,303.65
  6. Step 6: Final answer
    x = 288,710.22

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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.