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Finding the Fourth Proportional to 354,706.40, 532,059.60 and 248,418.20

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Solution

The fourth proportional to 354,706.40, 532,059.60 and 248,418.20 is: 372,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,706.40 : 532,059.60 = 248,418.20 : x
  2. Step 2: Convert to fraction form
    354,706.40/532,059.60 = 248,418.20/x
  3. Step 3: Cross multiply
    354,706.40x = 532,059.60 × 248,418.20
  4. Step 4: Simplify right side
    354,706.40x = 132,173,288,124.72
  5. Step 5: Solve for x
    x = 132,173,288,124.72/354,706.40
  6. Step 6: Final answer
    x = 372,627.30

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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.