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Finding the Fourth Proportional to 875,819.20, 1,313,728.80 and 734,101.60

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Solution

The fourth proportional to 875,819.20, 1,313,728.80 and 734,101.60 is: 1,101,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,819.20 : 1,313,728.80 = 734,101.60 : x
  2. Step 2: Convert to fraction form
    875,819.20/1,313,728.80 = 734,101.60/x
  3. Step 3: Cross multiply
    875,819.20x = 1,313,728.80 × 734,101.60
  4. Step 4: Simplify right side
    875,819.20x = 964,410,414,046.08
  5. Step 5: Solve for x
    x = 964,410,414,046.08/875,819.20
  6. Step 6: Final answer
    x = 1,101,152.40

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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.