Home / 879,014.17-1,212,982.18-491,763.43

Finding the Fourth Proportional to 879,014.17, 1,212,982.18 and 491,763.43

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Solution

The fourth proportional to 879,014.17, 1,212,982.18 and 491,763.43 is: 678,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,014.17 : 1,212,982.18 = 491,763.43 : x
  2. Step 2: Convert to fraction form
    879,014.17/1,212,982.18 = 491,763.43/x
  3. Step 3: Cross multiply
    879,014.17x = 1,212,982.18 × 491,763.43
  4. Step 4: Simplify right side
    879,014.17x = 596,500,277,365.68
  5. Step 5: Solve for x
    x = 596,500,277,365.68/879,014.17
  6. Step 6: Final answer
    x = 678,601.44

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1.5x scale

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.