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Finding the Fourth Proportional to 444,280.25, 612,469.05 and 316,734.41

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Solution

The fourth proportional to 444,280.25, 612,469.05 and 316,734.41 is: 436,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,280.25 : 612,469.05 = 316,734.41 : x
  2. Step 2: Convert to fraction form
    444,280.25/612,469.05 = 316,734.41/x
  3. Step 3: Cross multiply
    444,280.25x = 612,469.05 × 316,734.41
  4. Step 4: Simplify right side
    444,280.25x = 193,990,020,132.67
  5. Step 5: Solve for x
    x = 193,990,020,132.67/444,280.25
  6. Step 6: Final answer
    x = 436,638.86

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1.5x scale

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.