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Finding the Fourth Proportional to 922,668.40, 1,384,002.60 and 543,199.60

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Solution

The fourth proportional to 922,668.40, 1,384,002.60 and 543,199.60 is: 814,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,668.40 : 1,384,002.60 = 543,199.60 : x
  2. Step 2: Convert to fraction form
    922,668.40/1,384,002.60 = 543,199.60/x
  3. Step 3: Cross multiply
    922,668.40x = 1,384,002.60 × 543,199.60
  4. Step 4: Simplify right side
    922,668.40x = 751,789,658,718.96
  5. Step 5: Solve for x
    x = 751,789,658,718.96/922,668.40
  6. Step 6: Final answer
    x = 814,799.40

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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.