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Finding the Fourth Proportional to 289,559.60, 399,457.09 and 182,188.83

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Solution

The fourth proportional to 289,559.60, 399,457.09 and 182,188.83 is: 251,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,559.60 : 399,457.09 = 182,188.83 : x
  2. Step 2: Convert to fraction form
    289,559.60/399,457.09 = 182,188.83/x
  3. Step 3: Cross multiply
    289,559.60x = 399,457.09 × 182,188.83
  4. Step 4: Simplify right side
    289,559.60x = 72,776,620,385.76
  5. Step 5: Solve for x
    x = 72,776,620,385.76/289,559.60
  6. Step 6: Final answer
    x = 251,335.55

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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.