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Finding the Fourth Proportional to 659,834.25, 910,571.27 and 358,028.25

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Solution

The fourth proportional to 659,834.25, 910,571.27 and 358,028.25 is: 494,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,834.25 : 910,571.27 = 358,028.25 : x
  2. Step 2: Convert to fraction form
    659,834.25/910,571.27 = 358,028.25/x
  3. Step 3: Cross multiply
    659,834.25x = 910,571.27 × 358,028.25
  4. Step 4: Simplify right side
    659,834.25x = 326,010,236,508.24
  5. Step 5: Solve for x
    x = 326,010,236,508.24/659,834.25
  6. Step 6: Final answer
    x = 494,078.99

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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.