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Finding the Fourth Proportional to 297,866.60, 446,799.90 and 261,708.20

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Solution

The fourth proportional to 297,866.60, 446,799.90 and 261,708.20 is: 392,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,866.60 : 446,799.90 = 261,708.20 : x
  2. Step 2: Convert to fraction form
    297,866.60/446,799.90 = 261,708.20/x
  3. Step 3: Cross multiply
    297,866.60x = 446,799.90 × 261,708.20
  4. Step 4: Simplify right side
    297,866.60x = 116,931,197,589.18
  5. Step 5: Solve for x
    x = 116,931,197,589.18/297,866.60
  6. Step 6: Final answer
    x = 392,562.30

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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.