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Finding the Fourth Proportional to 561,308.68, 773,603.94 and 425,017

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Solution

The fourth proportional to 561,308.68, 773,603.94 and 425,017 is: 585,764.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,308.68 : 773,603.94 = 425,017 : x
  2. Step 2: Convert to fraction form
    561,308.68/773,603.94 = 425,017/x
  3. Step 3: Cross multiply
    561,308.68x = 773,603.94 × 425,017
  4. Step 4: Simplify right side
    561,308.68x = 328,794,825,766.98
  5. Step 5: Solve for x
    x = 328,794,825,766.98/561,308.68
  6. Step 6: Final answer
    x = 585,764.73

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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.