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Finding the Fourth Proportional to 452,774.88, 678,274.83 and 262,836.90

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Solution

The fourth proportional to 452,774.88, 678,274.83 and 262,836.90 is: 393,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,774.88 : 678,274.83 = 262,836.90 : x
  2. Step 2: Convert to fraction form
    452,774.88/678,274.83 = 262,836.90/x
  3. Step 3: Cross multiply
    452,774.88x = 678,274.83 × 262,836.90
  4. Step 4: Simplify right side
    452,774.88x = 178,275,653,665.23
  5. Step 5: Solve for x
    x = 178,275,653,665.23/452,774.88
  6. Step 6: Final answer
    x = 393,740.16

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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.