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Finding the Fourth Proportional to 922,446.90, 1,383,670.35 and 764,982.90

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Solution

The fourth proportional to 922,446.90, 1,383,670.35 and 764,982.90 is: 1,147,474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,446.90 : 1,383,670.35 = 764,982.90 : x
  2. Step 2: Convert to fraction form
    922,446.90/1,383,670.35 = 764,982.90/x
  3. Step 3: Cross multiply
    922,446.90x = 1,383,670.35 × 764,982.90
  4. Step 4: Simplify right side
    922,446.90x = 1,058,484,156,987.02
  5. Step 5: Solve for x
    x = 1,058,484,156,987.02/922,446.90
  6. Step 6: Final answer
    x = 1,147,474.35

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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.