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Finding the Fourth Proportional to 546,993.54, 754,888.95 and 305,323.20

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Solution

The fourth proportional to 546,993.54, 754,888.95 and 305,323.20 is: 421,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,993.54 : 754,888.95 = 305,323.20 : x
  2. Step 2: Convert to fraction form
    546,993.54/754,888.95 = 305,323.20/x
  3. Step 3: Cross multiply
    546,993.54x = 754,888.95 × 305,323.20
  4. Step 4: Simplify right side
    546,993.54x = 230,485,109,858.64
  5. Step 5: Solve for x
    x = 230,485,109,858.64/546,993.54
  6. Step 6: Final answer
    x = 421,367.15

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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.