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Finding the Fourth Proportional to 526,581.90, 726,686.46 and 322,633.26

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Solution

The fourth proportional to 526,581.90, 726,686.46 and 322,633.26 is: 445,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,581.90 : 726,686.46 = 322,633.26 : x
  2. Step 2: Convert to fraction form
    526,581.90/726,686.46 = 322,633.26/x
  3. Step 3: Cross multiply
    526,581.90x = 726,686.46 × 322,633.26
  4. Step 4: Simplify right side
    526,581.90x = 234,453,221,587.66
  5. Step 5: Solve for x
    x = 234,453,221,587.66/526,581.90
  6. Step 6: Final answer
    x = 445,236.01

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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.