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Finding the Fourth Proportional to 395,917.34, 546,237.47 and 223,818.66

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Solution

The fourth proportional to 395,917.34, 546,237.47 and 223,818.66 is: 308,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,917.34 : 546,237.47 = 223,818.66 : x
  2. Step 2: Convert to fraction form
    395,917.34/546,237.47 = 223,818.66/x
  3. Step 3: Cross multiply
    395,917.34x = 546,237.47 × 223,818.66
  4. Step 4: Simplify right side
    395,917.34x = 122,258,139,136.74
  5. Step 5: Solve for x
    x = 122,258,139,136.74/395,917.34
  6. Step 6: Final answer
    x = 308,797.14

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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.