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Finding the Fourth Proportional to 293,472.40, 439,042.20 and 254,462.80

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Solution

The fourth proportional to 293,472.40, 439,042.20 and 254,462.80 is: 380,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,472.40 : 439,042.20 = 254,462.80 : x
  2. Step 2: Convert to fraction form
    293,472.40/439,042.20 = 254,462.80/x
  3. Step 3: Cross multiply
    293,472.40x = 439,042.20 × 254,462.80
  4. Step 4: Simplify right side
    293,472.40x = 111,719,907,530.16
  5. Step 5: Solve for x
    x = 111,719,907,530.16/293,472.40
  6. Step 6: Final answer
    x = 380,682.84

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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.