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Finding the Fourth Proportional to 439,566.84, 659,449.71 and 140,064.48

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Solution

The fourth proportional to 439,566.84, 659,449.71 and 140,064.48 is: 210,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,566.84 : 659,449.71 = 140,064.48 : x
  2. Step 2: Convert to fraction form
    439,566.84/659,449.71 = 140,064.48/x
  3. Step 3: Cross multiply
    439,566.84x = 659,449.71 × 140,064.48
  4. Step 4: Simplify right side
    439,566.84x = 92,365,480,717.30
  5. Step 5: Solve for x
    x = 92,365,480,717.30/439,566.84
  6. Step 6: Final answer
    x = 210,128.41

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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.