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Finding the Fourth Proportional to 453,852.75, 679,957.92 and 326,805.15

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Solution

The fourth proportional to 453,852.75, 679,957.92 and 326,805.15 is: 489,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,852.75 : 679,957.92 = 326,805.15 : x
  2. Step 2: Convert to fraction form
    453,852.75/679,957.92 = 326,805.15/x
  3. Step 3: Cross multiply
    453,852.75x = 679,957.92 × 326,805.15
  4. Step 4: Simplify right side
    453,852.75x = 222,213,750,039.29
  5. Step 5: Solve for x
    x = 222,213,750,039.29/453,852.75
  6. Step 6: Final answer
    x = 489,616.40

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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.