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Finding the Fourth Proportional to 348,518.80, 522,778.20 and 341,520.40

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Solution

The fourth proportional to 348,518.80, 522,778.20 and 341,520.40 is: 512,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,518.80 : 522,778.20 = 341,520.40 : x
  2. Step 2: Convert to fraction form
    348,518.80/522,778.20 = 341,520.40/x
  3. Step 3: Cross multiply
    348,518.80x = 522,778.20 × 341,520.40
  4. Step 4: Simplify right side
    348,518.80x = 178,539,419,975.28
  5. Step 5: Solve for x
    x = 178,539,419,975.28/348,518.80
  6. Step 6: Final answer
    x = 512,280.60

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1.5x scale

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.