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Finding the Fourth Proportional to 489,114.60, 733,671.90 and 410,382.60

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Solution

The fourth proportional to 489,114.60, 733,671.90 and 410,382.60 is: 615,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,114.60 : 733,671.90 = 410,382.60 : x
  2. Step 2: Convert to fraction form
    489,114.60/733,671.90 = 410,382.60/x
  3. Step 3: Cross multiply
    489,114.60x = 733,671.90 × 410,382.60
  4. Step 4: Simplify right side
    489,114.60x = 301,086,181,868.94
  5. Step 5: Solve for x
    x = 301,086,181,868.94/489,114.60
  6. Step 6: Final answer
    x = 615,573.90

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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.