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Finding the Fourth Proportional to 881,848.95, 1,216,964.49 and 494,749.95

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Solution

The fourth proportional to 881,848.95, 1,216,964.49 and 494,749.95 is: 682,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,848.95 : 1,216,964.49 = 494,749.95 : x
  2. Step 2: Convert to fraction form
    881,848.95/1,216,964.49 = 494,749.95/x
  3. Step 3: Cross multiply
    881,848.95x = 1,216,964.49 × 494,749.95
  4. Step 4: Simplify right side
    881,848.95x = 602,093,120,579.28
  5. Step 5: Solve for x
    x = 602,093,120,579.28/881,848.95
  6. Step 6: Final answer
    x = 682,762.19

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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.