Home / 381,834.10-526,900.20-220,699.58

Finding the Fourth Proportional to 381,834.10, 526,900.20 and 220,699.58

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Solution

The fourth proportional to 381,834.10, 526,900.20 and 220,699.58 is: 304,547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,834.10 : 526,900.20 = 220,699.58 : x
  2. Step 2: Convert to fraction form
    381,834.10/526,900.20 = 220,699.58/x
  3. Step 3: Cross multiply
    381,834.10x = 526,900.20 × 220,699.58
  4. Step 4: Simplify right side
    381,834.10x = 116,286,652,841.92
  5. Step 5: Solve for x
    x = 116,286,652,841.92/381,834.10
  6. Step 6: Final answer
    x = 304,547.59

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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.