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Finding the Fourth Proportional to 415,878.15, 623,383.07 and 301,750.23

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Solution

The fourth proportional to 415,878.15, 623,383.07 and 301,750.23 is: 452,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,878.15 : 623,383.07 = 301,750.23 : x
  2. Step 2: Convert to fraction form
    415,878.15/623,383.07 = 301,750.23/x
  3. Step 3: Cross multiply
    415,878.15x = 623,383.07 × 301,750.23
  4. Step 4: Simplify right side
    415,878.15x = 188,105,983,241.86
  5. Step 5: Solve for x
    x = 188,105,983,241.86/415,878.15
  6. Step 6: Final answer
    x = 452,310.33

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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.