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Finding the Fourth Proportional to 371,683.72, 557,214.30 and 259,033.48

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Solution

The fourth proportional to 371,683.72, 557,214.30 and 259,033.48 is: 388,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,683.72 : 557,214.30 = 259,033.48 : x
  2. Step 2: Convert to fraction form
    371,683.72/557,214.30 = 259,033.48/x
  3. Step 3: Cross multiply
    371,683.72x = 557,214.30 × 259,033.48
  4. Step 4: Simplify right side
    371,683.72x = 144,337,159,234.76
  5. Step 5: Solve for x
    x = 144,337,159,234.76/371,683.72
  6. Step 6: Final answer
    x = 388,333.28

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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.