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Finding the Fourth Proportional to 611,504.67, 843,897.57 and 339,577.12

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Solution

The fourth proportional to 611,504.67, 843,897.57 and 339,577.12 is: 468,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,504.67 : 843,897.57 = 339,577.12 : x
  2. Step 2: Convert to fraction form
    611,504.67/843,897.57 = 339,577.12/x
  3. Step 3: Cross multiply
    611,504.67x = 843,897.57 × 339,577.12
  4. Step 4: Simplify right side
    611,504.67x = 286,568,306,177.06
  5. Step 5: Solve for x
    x = 286,568,306,177.06/611,504.67
  6. Step 6: Final answer
    x = 468,628.15

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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.