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Finding the Fourth Proportional to 2,916,829.40, 4,375,215.30 and 922,285.40

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Solution

The fourth proportional to 2,916,829.40, 4,375,215.30 and 922,285.40 is: 1,383,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916,829.40 : 4,375,215.30 = 922,285.40 : x
  2. Step 2: Convert to fraction form
    2,916,829.40/4,375,215.30 = 922,285.40/x
  3. Step 3: Cross multiply
    2,916,829.40x = 4,375,215.30 × 922,285.40
  4. Step 4: Simplify right side
    2,916,829.40x = 4,035,197,193,046.62
  5. Step 5: Solve for x
    x = 4,035,197,193,046.62/2,916,829.40
  6. Step 6: Final answer
    x = 1,383,418.99

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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.