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Finding the Fourth Proportional to 521,798.36, 721,531.22 and 414,181.56

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Solution

The fourth proportional to 521,798.36, 721,531.22 and 414,181.56 is: 572,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,798.36 : 721,531.22 = 414,181.56 : x
  2. Step 2: Convert to fraction form
    521,798.36/721,531.22 = 414,181.56/x
  3. Step 3: Cross multiply
    521,798.36x = 721,531.22 × 414,181.56
  4. Step 4: Simplify right side
    521,798.36x = 298,844,926,288.30
  5. Step 5: Solve for x
    x = 298,844,926,288.30/521,798.36
  6. Step 6: Final answer
    x = 572,721.09

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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.