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Finding the Fourth Proportional to 572,252.34, 789,745.14 and 317,603.53

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Solution

The fourth proportional to 572,252.34, 789,745.14 and 317,603.53 is: 438,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,252.34 : 789,745.14 = 317,603.53 : x
  2. Step 2: Convert to fraction form
    572,252.34/789,745.14 = 317,603.53/x
  3. Step 3: Cross multiply
    572,252.34x = 789,745.14 × 317,603.53
  4. Step 4: Simplify right side
    572,252.34x = 250,825,845,251.53
  5. Step 5: Solve for x
    x = 250,825,845,251.53/572,252.34
  6. Step 6: Final answer
    x = 438,313.36

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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.