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Finding the Fourth Proportional to 922,239.60, 1,383,618.60 and 448,940.40

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Solution

The fourth proportional to 922,239.60, 1,383,618.60 and 448,940.40 is: 673,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,239.60 : 1,383,618.60 = 448,940.40 : x
  2. Step 2: Convert to fraction form
    922,239.60/1,383,618.60 = 448,940.40/x
  3. Step 3: Cross multiply
    922,239.60x = 1,383,618.60 × 448,940.40
  4. Step 4: Simplify right side
    922,239.60x = 621,162,287,731.44
  5. Step 5: Solve for x
    x = 621,162,287,731.44/922,239.60
  6. Step 6: Final answer
    x = 673,536.78

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1.5x scale

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.