Home / 381,339.04-526,247.94-211,572.76

Finding the Fourth Proportional to 381,339.04, 526,247.94 and 211,572.76

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Solution

The fourth proportional to 381,339.04, 526,247.94 and 211,572.76 is: 291,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,339.04 : 526,247.94 = 211,572.76 : x
  2. Step 2: Convert to fraction form
    381,339.04/526,247.94 = 211,572.76/x
  3. Step 3: Cross multiply
    381,339.04x = 526,247.94 × 211,572.76
  4. Step 4: Simplify right side
    381,339.04x = 111,339,729,110.11
  5. Step 5: Solve for x
    x = 111,339,729,110.11/381,339.04
  6. Step 6: Final answer
    x = 291,970.44

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1.5x scale

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.