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Finding the Fourth Proportional to 445,683.45, 614,986.52 and 254,709.21

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Solution

The fourth proportional to 445,683.45, 614,986.52 and 254,709.21 is: 351,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,683.45 : 614,986.52 = 254,709.21 : x
  2. Step 2: Convert to fraction form
    445,683.45/614,986.52 = 254,709.21/x
  3. Step 3: Cross multiply
    445,683.45x = 614,986.52 × 254,709.21
  4. Step 4: Simplify right side
    445,683.45x = 156,642,729,396.30
  5. Step 5: Solve for x
    x = 156,642,729,396.30/445,683.45
  6. Step 6: Final answer
    x = 351,466.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.