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Finding the Fourth Proportional to 350,978.58, 484,378.01 and 207,817.56

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Solution

The fourth proportional to 350,978.58, 484,378.01 and 207,817.56 is: 286,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,978.58 : 484,378.01 = 207,817.56 : x
  2. Step 2: Convert to fraction form
    350,978.58/484,378.01 = 207,817.56/x
  3. Step 3: Cross multiply
    350,978.58x = 484,378.01 × 207,817.56
  4. Step 4: Simplify right side
    350,978.58x = 100,662,255,116.77
  5. Step 5: Solve for x
    x = 100,662,255,116.77/350,978.58
  6. Step 6: Final answer
    x = 286,804.55

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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.