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Finding the Fourth Proportional to 368,866.05, 552,441.54 and 356,080.56

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Solution

The fourth proportional to 368,866.05, 552,441.54 and 356,080.56 is: 533,293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,866.05 : 552,441.54 = 356,080.56 : x
  2. Step 2: Convert to fraction form
    368,866.05/552,441.54 = 356,080.56/x
  3. Step 3: Cross multiply
    368,866.05x = 552,441.54 × 356,080.56
  4. Step 4: Simplify right side
    368,866.05x = 196,713,692,930.46
  5. Step 5: Solve for x
    x = 196,713,692,930.46/368,866.05
  6. Step 6: Final answer
    x = 533,293.03

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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.