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Finding the Fourth Proportional to 363,121.20, 544,681.80 and 347,763.60

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Solution

The fourth proportional to 363,121.20, 544,681.80 and 347,763.60 is: 521,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,121.20 : 544,681.80 = 347,763.60 : x
  2. Step 2: Convert to fraction form
    363,121.20/544,681.80 = 347,763.60/x
  3. Step 3: Cross multiply
    363,121.20x = 544,681.80 × 347,763.60
  4. Step 4: Simplify right side
    363,121.20x = 189,420,503,622.48
  5. Step 5: Solve for x
    x = 189,420,503,622.48/363,121.20
  6. Step 6: Final answer
    x = 521,645.40

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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.