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Finding the Fourth Proportional to 371,730.94, 513,032.43 and 220,827.94

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Solution

The fourth proportional to 371,730.94, 513,032.43 and 220,827.94 is: 304,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,730.94 : 513,032.43 = 220,827.94 : x
  2. Step 2: Convert to fraction form
    371,730.94/513,032.43 = 220,827.94/x
  3. Step 3: Cross multiply
    371,730.94x = 513,032.43 × 220,827.94
  4. Step 4: Simplify right side
    371,730.94x = 113,291,894,215.62
  5. Step 5: Solve for x
    x = 113,291,894,215.62/371,730.94
  6. Step 6: Final answer
    x = 304,768.54

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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.