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Finding the Fourth Proportional to 452,091.17, 678,254.92 and 262,369.15

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Solution

The fourth proportional to 452,091.17, 678,254.92 and 262,369.15 is: 393,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,091.17 : 678,254.92 = 262,369.15 : x
  2. Step 2: Convert to fraction form
    452,091.17/678,254.92 = 262,369.15/x
  3. Step 3: Cross multiply
    452,091.17x = 678,254.92 × 262,369.15
  4. Step 4: Simplify right side
    452,091.17x = 177,953,169,999.05
  5. Step 5: Solve for x
    x = 177,953,169,999.05/452,091.17
  6. Step 6: Final answer
    x = 393,622.31

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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.