Home / 381,240.38-526,174.80-211,529.18

Finding the Fourth Proportional to 381,240.38, 526,174.80 and 211,529.18

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Solution

The fourth proportional to 381,240.38, 526,174.80 and 211,529.18 is: 291,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,240.38 : 526,174.80 = 211,529.18 : x
  2. Step 2: Convert to fraction form
    381,240.38/526,174.80 = 211,529.18/x
  3. Step 3: Cross multiply
    381,240.38x = 526,174.80 × 211,529.18
  4. Step 4: Simplify right side
    381,240.38x = 111,301,323,980.66
  5. Step 5: Solve for x
    x = 111,301,323,980.66/381,240.38
  6. Step 6: Final answer
    x = 291,945.27

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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.