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Finding the Fourth Proportional to 489,269.08, 674,566.44 and 316,882.52

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Solution

The fourth proportional to 489,269.08, 674,566.44 and 316,882.52 is: 436,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,269.08 : 674,566.44 = 316,882.52 : x
  2. Step 2: Convert to fraction form
    489,269.08/674,566.44 = 316,882.52/x
  3. Step 3: Cross multiply
    489,269.08x = 674,566.44 × 316,882.52
  4. Step 4: Simplify right side
    489,269.08x = 213,758,313,414.63
  5. Step 5: Solve for x
    x = 213,758,313,414.63/489,269.08
  6. Step 6: Final answer
    x = 436,893.16

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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.