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Finding the Fourth Proportional to 452,907.54, 678,394.08 and 345,093.30

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Solution

The fourth proportional to 452,907.54, 678,394.08 and 345,093.30 is: 516,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,907.54 : 678,394.08 = 345,093.30 : x
  2. Step 2: Convert to fraction form
    452,907.54/678,394.08 = 345,093.30/x
  3. Step 3: Cross multiply
    452,907.54x = 678,394.08 × 345,093.30
  4. Step 4: Simplify right side
    452,907.54x = 234,109,251,767.66
  5. Step 5: Solve for x
    x = 234,109,251,767.66/452,907.54
  6. Step 6: Final answer
    x = 516,902.97

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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.