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Finding the Fourth Proportional to 623,940.75, 936,014.51 and 219,027.92

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Solution

The fourth proportional to 623,940.75, 936,014.51 and 219,027.92 is: 328,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,940.75 : 936,014.51 = 219,027.92 : x
  2. Step 2: Convert to fraction form
    623,940.75/936,014.51 = 219,027.92/x
  3. Step 3: Cross multiply
    623,940.75x = 936,014.51 × 219,027.92
  4. Step 4: Simplify right side
    623,940.75x = 205,013,314,364.22
  5. Step 5: Solve for x
    x = 205,013,314,364.22/623,940.75
  6. Step 6: Final answer
    x = 328,578.18

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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.