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Finding the Fourth Proportional to 296,914.60, 445,080.30 and 265,421.80

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Solution

The fourth proportional to 296,914.60, 445,080.30 and 265,421.80 is: 397,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,914.60 : 445,080.30 = 265,421.80 : x
  2. Step 2: Convert to fraction form
    296,914.60/445,080.30 = 265,421.80/x
  3. Step 3: Cross multiply
    296,914.60x = 445,080.30 × 265,421.80
  4. Step 4: Simplify right side
    296,914.60x = 118,134,014,370.54
  5. Step 5: Solve for x
    x = 118,134,014,370.54/296,914.60
  6. Step 6: Final answer
    x = 397,872.03

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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.