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Finding the Fourth Proportional to 517,241.97, 775,476.40 and 356,860.25

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Solution

The fourth proportional to 517,241.97, 775,476.40 and 356,860.25 is: 535,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,241.97 : 775,476.40 = 356,860.25 : x
  2. Step 2: Convert to fraction form
    517,241.97/775,476.40 = 356,860.25/x
  3. Step 3: Cross multiply
    517,241.97x = 775,476.40 × 356,860.25
  4. Step 4: Simplify right side
    517,241.97x = 276,736,699,586.45
  5. Step 5: Solve for x
    x = 276,736,699,586.45/517,241.97
  6. Step 6: Final answer
    x = 535,023.68

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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.