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Finding the Fourth Proportional to 297,988.80, 446,983.20 and 265,329.60

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Solution

The fourth proportional to 297,988.80, 446,983.20 and 265,329.60 is: 397,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,988.80 : 446,983.20 = 265,329.60 : x
  2. Step 2: Convert to fraction form
    297,988.80/446,983.20 = 265,329.60/x
  3. Step 3: Cross multiply
    297,988.80x = 446,983.20 × 265,329.60
  4. Step 4: Simplify right side
    297,988.80x = 118,597,873,662.72
  5. Step 5: Solve for x
    x = 118,597,873,662.72/297,988.80
  6. Step 6: Final answer
    x = 397,994.40

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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.