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Finding the Fourth Proportional to 469,171.98, 647,439.99 and 254,307.44

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Solution

The fourth proportional to 469,171.98, 647,439.99 and 254,307.44 is: 350,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,171.98 : 647,439.99 = 254,307.44 : x
  2. Step 2: Convert to fraction form
    469,171.98/647,439.99 = 254,307.44/x
  3. Step 3: Cross multiply
    469,171.98x = 647,439.99 × 254,307.44
  4. Step 4: Simplify right side
    469,171.98x = 164,648,804,132.45
  5. Step 5: Solve for x
    x = 164,648,804,132.45/469,171.98
  6. Step 6: Final answer
    x = 350,934.86

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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.