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Finding the Fourth Proportional to 598,221.12, 825,525 and 356,378.46

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Solution

The fourth proportional to 598,221.12, 825,525 and 356,378.46 is: 491,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,221.12 : 825,525 = 356,378.46 : x
  2. Step 2: Convert to fraction form
    598,221.12/825,525 = 356,378.46/x
  3. Step 3: Cross multiply
    598,221.12x = 825,525 × 356,378.46
  4. Step 4: Simplify right side
    598,221.12x = 294,199,328,191.50
  5. Step 5: Solve for x
    x = 294,199,328,191.50/598,221.12
  6. Step 6: Final answer
    x = 491,790.27

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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.