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Finding the Fourth Proportional to 682,612.60, 1,023,044.10 and 326,860.60

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Solution

The fourth proportional to 682,612.60, 1,023,044.10 and 326,860.60 is: 489,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,612.60 : 1,023,044.10 = 326,860.60 : x
  2. Step 2: Convert to fraction form
    682,612.60/1,023,044.10 = 326,860.60/x
  3. Step 3: Cross multiply
    682,612.60x = 1,023,044.10 × 326,860.60
  4. Step 4: Simplify right side
    682,612.60x = 334,392,808,352.46
  5. Step 5: Solve for x
    x = 334,392,808,352.46/682,612.60
  6. Step 6: Final answer
    x = 489,872.01

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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.