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Finding the Fourth Proportional to 655,417.84, 982,125.25 and 441,394.38

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Solution

The fourth proportional to 655,417.84, 982,125.25 and 441,394.38 is: 661,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,417.84 : 982,125.25 = 441,394.38 : x
  2. Step 2: Convert to fraction form
    655,417.84/982,125.25 = 441,394.38/x
  3. Step 3: Cross multiply
    655,417.84x = 982,125.25 × 441,394.38
  4. Step 4: Simplify right side
    655,417.84x = 433,504,565,806.10
  5. Step 5: Solve for x
    x = 433,504,565,806.10/655,417.84
  6. Step 6: Final answer
    x = 661,417.10

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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.