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Finding the Fourth Proportional to 938,199.97, 1,407,300 and 377,103.25

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Solution

The fourth proportional to 938,199.97, 1,407,300 and 377,103.25 is: 565,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,199.97 : 1,407,300 = 377,103.25 : x
  2. Step 2: Convert to fraction form
    938,199.97/1,407,300 = 377,103.25/x
  3. Step 3: Cross multiply
    938,199.97x = 1,407,300 × 377,103.25
  4. Step 4: Simplify right side
    938,199.97x = 530,697,403,725
  5. Step 5: Solve for x
    x = 530,697,403,725/938,199.97
  6. Step 6: Final answer
    x = 565,654.89

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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.