Home / 3,512,360.65-5,268,138.50-918,915.77

Finding the Fourth Proportional to 3,512,360.65, 5,268,138.50 and 918,915.77

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Solution

The fourth proportional to 3,512,360.65, 5,268,138.50 and 918,915.77 is: 1,378,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512,360.65 : 5,268,138.50 = 918,915.77 : x
  2. Step 2: Convert to fraction form
    3,512,360.65/5,268,138.50 = 918,915.77/x
  3. Step 3: Cross multiply
    3,512,360.65x = 5,268,138.50 × 918,915.77
  4. Step 4: Simplify right side
    3,512,360.65x = 4,840,975,561,661.78
  5. Step 5: Solve for x
    x = 4,840,975,561,661.78/3,512,360.65
  6. Step 6: Final answer
    x = 1,378,268.36

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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.