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Finding the Fourth Proportional to 2,845,978.60, 3,927,481.63 and 1,556,819

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Solution

The fourth proportional to 2,845,978.60, 3,927,481.63 and 1,556,819 is: 2,148,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845,978.60 : 3,927,481.63 = 1,556,819 : x
  2. Step 2: Convert to fraction form
    2,845,978.60/3,927,481.63 = 1,556,819/x
  3. Step 3: Cross multiply
    2,845,978.60x = 3,927,481.63 × 1,556,819
  4. Step 4: Simplify right side
    2,845,978.60x = 6,114,378,023,734.97
  5. Step 5: Solve for x
    x = 6,114,378,023,734.97/2,845,978.60
  6. Step 6: Final answer
    x = 2,148,427.27

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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.