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Finding the Fourth Proportional to 307,505.58, 461,220.21 and 82,883.58

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Solution

The fourth proportional to 307,505.58, 461,220.21 and 82,883.58 is: 124,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,505.58 : 461,220.21 = 82,883.58 : x
  2. Step 2: Convert to fraction form
    307,505.58/461,220.21 = 82,883.58/x
  3. Step 3: Cross multiply
    307,505.58x = 461,220.21 × 82,883.58
  4. Step 4: Simplify right side
    307,505.58x = 38,227,582,173.15
  5. Step 5: Solve for x
    x = 38,227,582,173.15/307,505.58
  6. Step 6: Final answer
    x = 124,315.08

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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.