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Finding the Fourth Proportional to 531,543.15, 797,640.26 and 211,848.39

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Solution

The fourth proportional to 531,543.15, 797,640.26 and 211,848.39 is: 317,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,543.15 : 797,640.26 = 211,848.39 : x
  2. Step 2: Convert to fraction form
    531,543.15/797,640.26 = 211,848.39/x
  3. Step 3: Cross multiply
    531,543.15x = 797,640.26 × 211,848.39
  4. Step 4: Simplify right side
    531,543.15x = 168,978,803,820.94
  5. Step 5: Solve for x
    x = 168,978,803,820.94/531,543.15
  6. Step 6: Final answer
    x = 317,902.33

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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.