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Finding the Fourth Proportional to 503,457.66, 755,186.49 and 129,451.50

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Solution

The fourth proportional to 503,457.66, 755,186.49 and 129,451.50 is: 194,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,457.66 : 755,186.49 = 129,451.50 : x
  2. Step 2: Convert to fraction form
    503,457.66/755,186.49 = 129,451.50/x
  3. Step 3: Cross multiply
    503,457.66x = 755,186.49 × 129,451.50
  4. Step 4: Simplify right side
    503,457.66x = 97,760,023,910.24
  5. Step 5: Solve for x
    x = 97,760,023,910.24/503,457.66
  6. Step 6: Final answer
    x = 194,177.25

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Similar ratio
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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.