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Finding the Fourth Proportional to 555,790.24, 766,991.03 and 301,141.42

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Solution

The fourth proportional to 555,790.24, 766,991.03 and 301,141.42 is: 415,575.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,790.24 : 766,991.03 = 301,141.42 : x
  2. Step 2: Convert to fraction form
    555,790.24/766,991.03 = 301,141.42/x
  3. Step 3: Cross multiply
    555,790.24x = 766,991.03 × 301,141.42
  4. Step 4: Simplify right side
    555,790.24x = 230,972,767,901.46
  5. Step 5: Solve for x
    x = 230,972,767,901.46/555,790.24
  6. Step 6: Final answer
    x = 415,575.43

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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.