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Finding the Fourth Proportional to 555,411.44, 766,467.60 and 300,762.56

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Solution

The fourth proportional to 555,411.44, 766,467.60 and 300,762.56 is: 415,052.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,411.44 : 766,467.60 = 300,762.56 : x
  2. Step 2: Convert to fraction form
    555,411.44/766,467.60 = 300,762.56/x
  3. Step 3: Cross multiply
    555,411.44x = 766,467.60 × 300,762.56
  4. Step 4: Simplify right side
    555,411.44x = 230,524,757,533.06
  5. Step 5: Solve for x
    x = 230,524,757,533.06/555,411.44
  6. Step 6: Final answer
    x = 415,052.23

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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.