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Finding the Fourth Proportional to 641,036.66, 961,883.01 and 262,237.32

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Solution

The fourth proportional to 641,036.66, 961,883.01 and 262,237.32 is: 393,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,036.66 : 961,883.01 = 262,237.32 : x
  2. Step 2: Convert to fraction form
    641,036.66/961,883.01 = 262,237.32/x
  3. Step 3: Cross multiply
    641,036.66x = 961,883.01 × 262,237.32
  4. Step 4: Simplify right side
    641,036.66x = 252,241,622,695.93
  5. Step 5: Solve for x
    x = 252,241,622,695.93/641,036.66
  6. Step 6: Final answer
    x = 393,490.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.