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Finding the Fourth Proportional to 561,836.33, 774,817.07 and 368,173.70

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Solution

The fourth proportional to 561,836.33, 774,817.07 and 368,173.70 is: 507,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,836.33 : 774,817.07 = 368,173.70 : x
  2. Step 2: Convert to fraction form
    561,836.33/774,817.07 = 368,173.70/x
  3. Step 3: Cross multiply
    561,836.33x = 774,817.07 × 368,173.70
  4. Step 4: Simplify right side
    561,836.33x = 285,267,267,485.06
  5. Step 5: Solve for x
    x = 285,267,267,485.06/561,836.33
  6. Step 6: Final answer
    x = 507,740.87

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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.