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Finding the Fourth Proportional to 693,493.56, 955,556.46 and 617,219.64

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Solution

The fourth proportional to 693,493.56, 955,556.46 and 617,219.64 is: 850,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,493.56 : 955,556.46 = 617,219.64 : x
  2. Step 2: Convert to fraction form
    693,493.56/955,556.46 = 617,219.64/x
  3. Step 3: Cross multiply
    693,493.56x = 955,556.46 × 617,219.64
  4. Step 4: Simplify right side
    693,493.56x = 589,788,214,240.87
  5. Step 5: Solve for x
    x = 589,788,214,240.87/693,493.56
  6. Step 6: Final answer
    x = 850,459.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.