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Finding the Fourth Proportional to 468,900.72, 647,083.62 and 254,040.80

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Solution

The fourth proportional to 468,900.72, 647,083.62 and 254,040.80 is: 350,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,900.72 : 647,083.62 = 254,040.80 : x
  2. Step 2: Convert to fraction form
    468,900.72/647,083.62 = 254,040.80/x
  3. Step 3: Cross multiply
    468,900.72x = 647,083.62 × 254,040.80
  4. Step 4: Simplify right side
    468,900.72x = 164,385,637,256.28
  5. Step 5: Solve for x
    x = 164,385,637,256.28/468,900.72
  6. Step 6: Final answer
    x = 350,576.64

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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.