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Finding the Fourth Proportional to 622,496.80, 859,034.28 and 350,563.60

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Solution

The fourth proportional to 622,496.80, 859,034.28 and 350,563.60 is: 483,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,496.80 : 859,034.28 = 350,563.60 : x
  2. Step 2: Convert to fraction form
    622,496.80/859,034.28 = 350,563.60/x
  3. Step 3: Cross multiply
    622,496.80x = 859,034.28 × 350,563.60
  4. Step 4: Simplify right side
    622,496.80x = 301,146,149,720.21
  5. Step 5: Solve for x
    x = 301,146,149,720.21/622,496.80
  6. Step 6: Final answer
    x = 483,771.40

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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.