Home / 381,731.40-526,802.58-211,968.36

Finding the Fourth Proportional to 381,731.40, 526,802.58 and 211,968.36

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Solution

The fourth proportional to 381,731.40, 526,802.58 and 211,968.36 is: 292,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,731.40 : 526,802.58 = 211,968.36 : x
  2. Step 2: Convert to fraction form
    381,731.40/526,802.58 = 211,968.36/x
  3. Step 3: Cross multiply
    381,731.40x = 526,802.58 × 211,968.36
  4. Step 4: Simplify right side
    381,731.40x = 111,665,478,926.37
  5. Step 5: Solve for x
    x = 111,665,478,926.37/381,731.40
  6. Step 6: Final answer
    x = 292,523.69

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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.