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Finding the Fourth Proportional to 368,003.70, 552,005.55 and 308,954.70

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Solution

The fourth proportional to 368,003.70, 552,005.55 and 308,954.70 is: 463,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,003.70 : 552,005.55 = 308,954.70 : x
  2. Step 2: Convert to fraction form
    368,003.70/552,005.55 = 308,954.70/x
  3. Step 3: Cross multiply
    368,003.70x = 552,005.55 × 308,954.70
  4. Step 4: Simplify right side
    368,003.70x = 170,544,709,098.59
  5. Step 5: Solve for x
    x = 170,544,709,098.59/368,003.70
  6. Step 6: Final answer
    x = 463,432.05

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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.