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Finding the Fourth Proportional to 562,890.26, 776,773.50 and 321,168.44

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Solution

The fourth proportional to 562,890.26, 776,773.50 and 321,168.44 is: 443,203.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,890.26 : 776,773.50 = 321,168.44 : x
  2. Step 2: Convert to fraction form
    562,890.26/776,773.50 = 321,168.44/x
  3. Step 3: Cross multiply
    562,890.26x = 776,773.50 × 321,168.44
  4. Step 4: Simplify right side
    562,890.26x = 249,475,133,228.34
  5. Step 5: Solve for x
    x = 249,475,133,228.34/562,890.26
  6. Step 6: Final answer
    x = 443,203.86

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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.