Home / 381,284.51-526,171.02-211,518.64

Finding the Fourth Proportional to 381,284.51, 526,171.02 and 211,518.64

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Solution

The fourth proportional to 381,284.51, 526,171.02 and 211,518.64 is: 291,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,284.51 : 526,171.02 = 211,518.64 : x
  2. Step 2: Convert to fraction form
    381,284.51/526,171.02 = 211,518.64/x
  3. Step 3: Cross multiply
    381,284.51x = 526,171.02 × 211,518.64
  4. Step 4: Simplify right side
    381,284.51x = 111,294,975,926.96
  5. Step 5: Solve for x
    x = 111,294,975,926.96/381,284.51
  6. Step 6: Final answer
    x = 291,894.83

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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.