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Finding the Fourth Proportional to 658,513.26, 987,907.59 and 374,334.48

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Solution

The fourth proportional to 658,513.26, 987,907.59 and 374,334.48 is: 561,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,513.26 : 987,907.59 = 374,334.48 : x
  2. Step 2: Convert to fraction form
    658,513.26/987,907.59 = 374,334.48/x
  3. Step 3: Cross multiply
    658,513.26x = 987,907.59 × 374,334.48
  4. Step 4: Simplify right side
    658,513.26x = 369,807,873,990.70
  5. Step 5: Solve for x
    x = 369,807,873,990.70/658,513.26
  6. Step 6: Final answer
    x = 561,580.00

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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.