Home / 1,965,705.76-2,948,556.16-617,986

Finding the Fourth Proportional to 1,965,705.76, 2,948,556.16 and 617,986

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Solution

The fourth proportional to 1,965,705.76, 2,948,556.16 and 617,986 is: 926,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,705.76 : 2,948,556.16 = 617,986 : x
  2. Step 2: Convert to fraction form
    1,965,705.76/2,948,556.16 = 617,986/x
  3. Step 3: Cross multiply
    1,965,705.76x = 2,948,556.16 × 617,986
  4. Step 4: Simplify right side
    1,965,705.76x = 1,822,166,427,093.76
  5. Step 5: Solve for x
    x = 1,822,166,427,093.76/1,965,705.76
  6. Step 6: Final answer
    x = 926,978.22

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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.