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Finding the Fourth Proportional to 368,426.70, 552,640.05 and 275,114.70

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Solution

The fourth proportional to 368,426.70, 552,640.05 and 275,114.70 is: 412,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,426.70 : 552,640.05 = 275,114.70 : x
  2. Step 2: Convert to fraction form
    368,426.70/552,640.05 = 275,114.70/x
  3. Step 3: Cross multiply
    368,426.70x = 552,640.05 × 275,114.70
  4. Step 4: Simplify right side
    368,426.70x = 152,039,401,563.74
  5. Step 5: Solve for x
    x = 152,039,401,563.74/368,426.70
  6. Step 6: Final answer
    x = 412,672.05

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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.