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Finding the Fourth Proportional to 611,577.41, 844,004.86 and 339,646.55

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Solution

The fourth proportional to 611,577.41, 844,004.86 and 339,646.55 is: 468,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,577.41 : 844,004.86 = 339,646.55 : x
  2. Step 2: Convert to fraction form
    611,577.41/844,004.86 = 339,646.55/x
  3. Step 3: Cross multiply
    611,577.41x = 844,004.86 × 339,646.55
  4. Step 4: Simplify right side
    611,577.41x = 286,663,338,882.23
  5. Step 5: Solve for x
    x = 286,663,338,882.23/611,577.41
  6. Step 6: Final answer
    x = 468,727.81

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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.