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Finding the Fourth Proportional to 436,971.90, 603,110.54 and 275,718.30

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Solution

The fourth proportional to 436,971.90, 603,110.54 and 275,718.30 is: 380,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,971.90 : 603,110.54 = 275,718.30 : x
  2. Step 2: Convert to fraction form
    436,971.90/603,110.54 = 275,718.30/x
  3. Step 3: Cross multiply
    436,971.90x = 603,110.54 × 275,718.30
  4. Step 4: Simplify right side
    436,971.90x = 166,288,612,800.88
  5. Step 5: Solve for x
    x = 166,288,612,800.88/436,971.90
  6. Step 6: Final answer
    x = 380,547.61

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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.