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Finding the Fourth Proportional to 585,540.80, 879,623.40 and 561,629.60

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Solution

The fourth proportional to 585,540.80, 879,623.40 and 561,629.60 is: 843,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,540.80 : 879,623.40 = 561,629.60 : x
  2. Step 2: Convert to fraction form
    585,540.80/879,623.40 = 561,629.60/x
  3. Step 3: Cross multiply
    585,540.80x = 879,623.40 × 561,629.60
  4. Step 4: Simplify right side
    585,540.80x = 494,022,538,292.64
  5. Step 5: Solve for x
    x = 494,022,538,292.64/585,540.80
  6. Step 6: Final answer
    x = 843,703.01

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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.