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Finding the Fourth Proportional to 609,268, 840,792.72 and 341,047.84

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Solution

The fourth proportional to 609,268, 840,792.72 and 341,047.84 is: 470,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,268 : 840,792.72 = 341,047.84 : x
  2. Step 2: Convert to fraction form
    609,268/840,792.72 = 341,047.84/x
  3. Step 3: Cross multiply
    609,268x = 840,792.72 × 341,047.84
  4. Step 4: Simplify right side
    609,268x = 286,750,541,043.73
  5. Step 5: Solve for x
    x = 286,750,541,043.73/609,268
  6. Step 6: Final answer
    x = 470,647.63

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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.