Home / 381,178.26-526,012.65-211,428.18

Finding the Fourth Proportional to 381,178.26, 526,012.65 and 211,428.18

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Solution

The fourth proportional to 381,178.26, 526,012.65 and 211,428.18 is: 291,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,178.26 : 526,012.65 = 211,428.18 : x
  2. Step 2: Convert to fraction form
    381,178.26/526,012.65 = 211,428.18/x
  3. Step 3: Cross multiply
    381,178.26x = 526,012.65 × 211,428.18
  4. Step 4: Simplify right side
    381,178.26x = 111,213,897,246.48
  5. Step 5: Solve for x
    x = 111,213,897,246.48/381,178.26
  6. Step 6: Final answer
    x = 291,763.48

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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.