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Finding the Fourth Proportional to 515,525.66, 773,060.12 and 275,581.43

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Solution

The fourth proportional to 515,525.66, 773,060.12 and 275,581.43 is: 413,250.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,525.66 : 773,060.12 = 275,581.43 : x
  2. Step 2: Convert to fraction form
    515,525.66/773,060.12 = 275,581.43/x
  3. Step 3: Cross multiply
    515,525.66x = 773,060.12 × 275,581.43
  4. Step 4: Simplify right side
    515,525.66x = 213,041,008,102.36
  5. Step 5: Solve for x
    x = 213,041,008,102.36/515,525.66
  6. Step 6: Final answer
    x = 413,250.06

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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.