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Finding the Fourth Proportional to 860,784, 1,291,383.36 and 269,808

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Solution

The fourth proportional to 860,784, 1,291,383.36 and 269,808 is: 404,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,784 : 1,291,383.36 = 269,808 : x
  2. Step 2: Convert to fraction form
    860,784/1,291,383.36 = 269,808/x
  3. Step 3: Cross multiply
    860,784x = 1,291,383.36 × 269,808
  4. Step 4: Simplify right side
    860,784x = 348,425,561,594.88
  5. Step 5: Solve for x
    x = 348,425,561,594.88/860,784
  6. Step 6: Final answer
    x = 404,777.00

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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.