Home / 1,285,918.30-1,928,982.63-645,892.94

Finding the Fourth Proportional to 1,285,918.30, 1,928,982.63 and 645,892.94

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Solution

The fourth proportional to 1,285,918.30, 1,928,982.63 and 645,892.94 is: 968,892.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,918.30 : 1,928,982.63 = 645,892.94 : x
  2. Step 2: Convert to fraction form
    1,285,918.30/1,928,982.63 = 645,892.94/x
  3. Step 3: Cross multiply
    1,285,918.30x = 1,928,982.63 × 645,892.94
  4. Step 4: Simplify right side
    1,285,918.30x = 1,245,916,262,099.63
  5. Step 5: Solve for x
    x = 1,245,916,262,099.63/1,285,918.30
  6. Step 6: Final answer
    x = 968,892.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.