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Finding the Fourth Proportional to 468,869.74, 647,039.46 and 254,015.26

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Solution

The fourth proportional to 468,869.74, 647,039.46 and 254,015.26 is: 350,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,869.74 : 647,039.46 = 254,015.26 : x
  2. Step 2: Convert to fraction form
    468,869.74/647,039.46 = 254,015.26/x
  3. Step 3: Cross multiply
    468,869.74x = 647,039.46 × 254,015.26
  4. Step 4: Simplify right side
    468,869.74x = 164,357,896,662.16
  5. Step 5: Solve for x
    x = 164,357,896,662.16/468,869.74
  6. Step 6: Final answer
    x = 350,540.64

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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.