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Finding the Fourth Proportional to 622,287.20, 933,891.60 and 248,578.40

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Solution

The fourth proportional to 622,287.20, 933,891.60 and 248,578.40 is: 373,051.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,287.20 : 933,891.60 = 248,578.40 : x
  2. Step 2: Convert to fraction form
    622,287.20/933,891.60 = 248,578.40/x
  3. Step 3: Cross multiply
    622,287.20x = 933,891.60 × 248,578.40
  4. Step 4: Simplify right side
    622,287.20x = 232,145,279,701.44
  5. Step 5: Solve for x
    x = 232,145,279,701.44/622,287.20
  6. Step 6: Final answer
    x = 373,051.67

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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.