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Finding the Fourth Proportional to 554,876.49, 765,647.43 and 336,971.85

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Solution

The fourth proportional to 554,876.49, 765,647.43 and 336,971.85 is: 464,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,876.49 : 765,647.43 = 336,971.85 : x
  2. Step 2: Convert to fraction form
    554,876.49/765,647.43 = 336,971.85/x
  3. Step 3: Cross multiply
    554,876.49x = 765,647.43 × 336,971.85
  4. Step 4: Simplify right side
    554,876.49x = 258,001,630,934.85
  5. Step 5: Solve for x
    x = 258,001,630,934.85/554,876.49
  6. Step 6: Final answer
    x = 464,971.28

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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.