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Finding the Fourth Proportional to 555,546.74, 766,650.92 and 313,907.54

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Solution

The fourth proportional to 555,546.74, 766,650.92 and 313,907.54 is: 433,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,546.74 : 766,650.92 = 313,907.54 : x
  2. Step 2: Convert to fraction form
    555,546.74/766,650.92 = 313,907.54/x
  3. Step 3: Cross multiply
    555,546.74x = 766,650.92 × 313,907.54
  4. Step 4: Simplify right side
    555,546.74x = 240,657,504,335.94
  5. Step 5: Solve for x
    x = 240,657,504,335.94/555,546.74
  6. Step 6: Final answer
    x = 433,190.38

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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.