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Finding the Fourth Proportional to 897,571,213.20, 1,346,356,819.80 and 803,848,640.40

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Solution

The fourth proportional to 897,571,213.20, 1,346,356,819.80 and 803,848,640.40 is: 1,205,772,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,571,213.20 : 1,346,356,819.80 = 803,848,640.40 : x
  2. Step 2: Convert to fraction form
    897,571,213.20/1,346,356,819.80 = 803,848,640.40/x
  3. Step 3: Cross multiply
    897,571,213.20x = 1,346,356,819.80 × 803,848,640.40
  4. Step 4: Simplify right side
    897,571,213.20x = 1,082,267,099,089,497,728
  5. Step 5: Solve for x
    x = 1,082,267,099,089,497,728/897,571,213.20
  6. Step 6: Final answer
    x = 1,205,772,960.60

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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.