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Finding the Fourth Proportional to 922,485.19, 1,383,737.08 and 323,460.78

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Solution

The fourth proportional to 922,485.19, 1,383,737.08 and 323,460.78 is: 485,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,485.19 : 1,383,737.08 = 323,460.78 : x
  2. Step 2: Convert to fraction form
    922,485.19/1,383,737.08 = 323,460.78/x
  3. Step 3: Cross multiply
    922,485.19x = 1,383,737.08 × 323,460.78
  4. Step 4: Simplify right side
    922,485.19x = 447,584,668,293.04
  5. Step 5: Solve for x
    x = 447,584,668,293.04/922,485.19
  6. Step 6: Final answer
    x = 485,194.42

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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.