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Finding the Fourth Proportional to 373,597.50, 515,564.55 and 239,461.50

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Solution

The fourth proportional to 373,597.50, 515,564.55 and 239,461.50 is: 330,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,597.50 : 515,564.55 = 239,461.50 : x
  2. Step 2: Convert to fraction form
    373,597.50/515,564.55 = 239,461.50/x
  3. Step 3: Cross multiply
    373,597.50x = 515,564.55 × 239,461.50
  4. Step 4: Simplify right side
    373,597.50x = 123,457,860,489.83
  5. Step 5: Solve for x
    x = 123,457,860,489.83/373,597.50
  6. Step 6: Final answer
    x = 330,456.87

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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.