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Finding the Fourth Proportional to 469,099.55, 647,360.58 and 254,243.21

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Solution

The fourth proportional to 469,099.55, 647,360.58 and 254,243.21 is: 350,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,099.55 : 647,360.58 = 254,243.21 : x
  2. Step 2: Convert to fraction form
    469,099.55/647,360.58 = 254,243.21/x
  3. Step 3: Cross multiply
    469,099.55x = 647,360.58 × 254,243.21
  4. Step 4: Simplify right side
    469,099.55x = 164,587,028,888.21
  5. Step 5: Solve for x
    x = 164,587,028,888.21/469,099.55
  6. Step 6: Final answer
    x = 350,857.36

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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.