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Finding the Fourth Proportional to 647,010.35, 970,515.53 and 367,074.35

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Solution

The fourth proportional to 647,010.35, 970,515.53 and 367,074.35 is: 550,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,010.35 : 970,515.53 = 367,074.35 : x
  2. Step 2: Convert to fraction form
    647,010.35/970,515.53 = 367,074.35/x
  3. Step 3: Cross multiply
    647,010.35x = 970,515.53 × 367,074.35
  4. Step 4: Simplify right side
    647,010.35x = 356,251,357,339.66
  5. Step 5: Solve for x
    x = 356,251,357,339.66/647,010.35
  6. Step 6: Final answer
    x = 550,611.53

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Double scale
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Similar ratio
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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.