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Finding the Fourth Proportional to 500,086.88, 749,372.59 and 331,001.45

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Solution

The fourth proportional to 500,086.88, 749,372.59 and 331,001.45 is: 496,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,086.88 : 749,372.59 = 331,001.45 : x
  2. Step 2: Convert to fraction form
    500,086.88/749,372.59 = 331,001.45/x
  3. Step 3: Cross multiply
    500,086.88x = 749,372.59 × 331,001.45
  4. Step 4: Simplify right side
    500,086.88x = 248,043,413,880.26
  5. Step 5: Solve for x
    x = 248,043,413,880.26/500,086.88
  6. Step 6: Final answer
    x = 496,000.64

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1.5x scale

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.