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Finding the Fourth Proportional to 534,457.99, 801,686.78 and 214,609.76

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Solution

The fourth proportional to 534,457.99, 801,686.78 and 214,609.76 is: 321,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,457.99 : 801,686.78 = 214,609.76 : x
  2. Step 2: Convert to fraction form
    534,457.99/801,686.78 = 214,609.76/x
  3. Step 3: Cross multiply
    534,457.99x = 801,686.78 × 214,609.76
  4. Step 4: Simplify right side
    534,457.99x = 172,049,806,377.92
  5. Step 5: Solve for x
    x = 172,049,806,377.92/534,457.99
  6. Step 6: Final answer
    x = 321,914.56

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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.