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Finding the Fourth Proportional to 511,556.77, 766,235.45 and 415,060.39

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Solution

The fourth proportional to 511,556.77, 766,235.45 and 415,060.39 is: 621,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,556.77 : 766,235.45 = 415,060.39 : x
  2. Step 2: Convert to fraction form
    511,556.77/766,235.45 = 415,060.39/x
  3. Step 3: Cross multiply
    511,556.77x = 766,235.45 × 415,060.39
  4. Step 4: Simplify right side
    511,556.77x = 318,033,982,633.52
  5. Step 5: Solve for x
    x = 318,033,982,633.52/511,556.77
  6. Step 6: Final answer
    x = 621,698.32

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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.