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Finding the Fourth Proportional to 297,876.80, 446,815.20 and 265,217.60

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Solution

The fourth proportional to 297,876.80, 446,815.20 and 265,217.60 is: 397,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,876.80 : 446,815.20 = 265,217.60 : x
  2. Step 2: Convert to fraction form
    297,876.80/446,815.20 = 265,217.60/x
  3. Step 3: Cross multiply
    297,876.80x = 446,815.20 × 265,217.60
  4. Step 4: Simplify right side
    297,876.80x = 118,503,254,987.52
  5. Step 5: Solve for x
    x = 118,503,254,987.52/297,876.80
  6. Step 6: Final answer
    x = 397,826.40

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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.