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Finding the Fourth Proportional to 303,321.80, 454,982.70 and 297,416.90

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Solution

The fourth proportional to 303,321.80, 454,982.70 and 297,416.90 is: 446,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,321.80 : 454,982.70 = 297,416.90 : x
  2. Step 2: Convert to fraction form
    303,321.80/454,982.70 = 297,416.90/x
  3. Step 3: Cross multiply
    303,321.80x = 454,982.70 × 297,416.90
  4. Step 4: Simplify right side
    303,321.80x = 135,319,544,187.63
  5. Step 5: Solve for x
    x = 135,319,544,187.63/303,321.80
  6. Step 6: Final answer
    x = 446,125.35

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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.