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Finding the Fourth Proportional to 553,896.39, 764,379.11 and 350,037.91

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Solution

The fourth proportional to 553,896.39, 764,379.11 and 350,037.91 is: 483,053.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,896.39 : 764,379.11 = 350,037.91 : x
  2. Step 2: Convert to fraction form
    553,896.39/764,379.11 = 350,037.91/x
  3. Step 3: Cross multiply
    553,896.39x = 764,379.11 × 350,037.91
  4. Step 4: Simplify right side
    553,896.39x = 267,561,666,112.06
  5. Step 5: Solve for x
    x = 267,561,666,112.06/553,896.39
  6. Step 6: Final answer
    x = 483,053.64

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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.