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Finding the Fourth Proportional to 395,173.33, 592,759.15 and 305,346.64

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Solution

The fourth proportional to 395,173.33, 592,759.15 and 305,346.64 is: 458,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,173.33 : 592,759.15 = 305,346.64 : x
  2. Step 2: Convert to fraction form
    395,173.33/592,759.15 = 305,346.64/x
  3. Step 3: Cross multiply
    395,173.33x = 592,759.15 × 305,346.64
  4. Step 4: Simplify right side
    395,173.33x = 180,997,014,781.76
  5. Step 5: Solve for x
    x = 180,997,014,781.76/395,173.33
  6. Step 6: Final answer
    x = 458,019.31

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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.