Home / 1,656,915.68-2,286,556.80-921,880.64

Finding the Fourth Proportional to 1,656,915.68, 2,286,556.80 and 921,880.64

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Solution

The fourth proportional to 1,656,915.68, 2,286,556.80 and 921,880.64 is: 1,272,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656,915.68 : 2,286,556.80 = 921,880.64 : x
  2. Step 2: Convert to fraction form
    1,656,915.68/2,286,556.80 = 921,880.64/x
  3. Step 3: Cross multiply
    1,656,915.68x = 2,286,556.80 × 921,880.64
  4. Step 4: Simplify right side
    1,656,915.68x = 2,107,932,446,180.35
  5. Step 5: Solve for x
    x = 2,107,932,446,180.35/1,656,915.68
  6. Step 6: Final answer
    x = 1,272,202.61

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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.