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Finding the Fourth Proportional to 381,445.80, 572,824.80 and 248,913.60

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Solution

The fourth proportional to 381,445.80, 572,824.80 and 248,913.60 is: 373,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,445.80 : 572,824.80 = 248,913.60 : x
  2. Step 2: Convert to fraction form
    381,445.80/572,824.80 = 248,913.60/x
  3. Step 3: Cross multiply
    381,445.80x = 572,824.80 × 248,913.60
  4. Step 4: Simplify right side
    381,445.80x = 142,583,883,137.28
  5. Step 5: Solve for x
    x = 142,583,883,137.28/381,445.80
  6. Step 6: Final answer
    x = 373,798.54

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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.