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Finding the Fourth Proportional to 628,104.96, 866,789.28 and 341,634.24

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Solution

The fourth proportional to 628,104.96, 866,789.28 and 341,634.24 is: 471,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,104.96 : 866,789.28 = 341,634.24 : x
  2. Step 2: Convert to fraction form
    628,104.96/866,789.28 = 341,634.24/x
  3. Step 3: Cross multiply
    628,104.96x = 866,789.28 × 341,634.24
  4. Step 4: Simplify right side
    628,104.96x = 296,124,896,912.95
  5. Step 5: Solve for x
    x = 296,124,896,912.95/628,104.96
  6. Step 6: Final answer
    x = 471,457.66

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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.