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Finding the Fourth Proportional to 611,774.91, 844,225.91 and 339,859.91

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Solution

The fourth proportional to 611,774.91, 844,225.91 and 339,859.91 is: 468,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,774.91 : 844,225.91 = 339,859.91 : x
  2. Step 2: Convert to fraction form
    611,774.91/844,225.91 = 339,859.91/x
  3. Step 3: Cross multiply
    611,774.91x = 844,225.91 × 339,859.91
  4. Step 4: Simplify right side
    611,774.91x = 286,918,535,871.84
  5. Step 5: Solve for x
    x = 286,918,535,871.84/611,774.91
  6. Step 6: Final answer
    x = 468,993.63

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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.