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Finding the Fourth Proportional to 468,619.79, 646,698.39 and 253,759.87

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Solution

The fourth proportional to 468,619.79, 646,698.39 and 253,759.87 is: 350,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,619.79 : 646,698.39 = 253,759.87 : x
  2. Step 2: Convert to fraction form
    468,619.79/646,698.39 = 253,759.87/x
  3. Step 3: Cross multiply
    468,619.79x = 646,698.39 × 253,759.87
  4. Step 4: Simplify right side
    468,619.79x = 164,106,097,124.46
  5. Step 5: Solve for x
    x = 164,106,097,124.46/468,619.79
  6. Step 6: Final answer
    x = 350,190.28

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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.