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Finding the Fourth Proportional to 529,764.30, 794,646.45 and 489,329.10

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Solution

The fourth proportional to 529,764.30, 794,646.45 and 489,329.10 is: 733,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,764.30 : 794,646.45 = 489,329.10 : x
  2. Step 2: Convert to fraction form
    529,764.30/794,646.45 = 489,329.10/x
  3. Step 3: Cross multiply
    529,764.30x = 794,646.45 × 489,329.10
  4. Step 4: Simplify right side
    529,764.30x = 388,843,632,196.70
  5. Step 5: Solve for x
    x = 388,843,632,196.70/529,764.30
  6. Step 6: Final answer
    x = 733,993.65

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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.