Home / 640,859.09-961,499.05-262,098.36

Finding the Fourth Proportional to 640,859.09, 961,499.05 and 262,098.36

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Solution

The fourth proportional to 640,859.09, 961,499.05 and 262,098.36 is: 393,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,859.09 : 961,499.05 = 262,098.36 : x
  2. Step 2: Convert to fraction form
    640,859.09/961,499.05 = 262,098.36/x
  3. Step 3: Cross multiply
    640,859.09x = 961,499.05 × 262,098.36
  4. Step 4: Simplify right side
    640,859.09x = 252,007,323,491.31
  5. Step 5: Solve for x
    x = 252,007,323,491.31/640,859.09
  6. Step 6: Final answer
    x = 393,233.60

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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.