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Finding the Fourth Proportional to 626,005.92, 863,907.72 and 354,068.49

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Solution

The fourth proportional to 626,005.92, 863,907.72 and 354,068.49 is: 488,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,005.92 : 863,907.72 = 354,068.49 : x
  2. Step 2: Convert to fraction form
    626,005.92/863,907.72 = 354,068.49/x
  3. Step 3: Cross multiply
    626,005.92x = 863,907.72 × 354,068.49
  4. Step 4: Simplify right side
    626,005.92x = 305,882,498,874.80
  5. Step 5: Solve for x
    x = 305,882,498,874.80/626,005.92
  6. Step 6: Final answer
    x = 488,625.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.