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Finding the Fourth Proportional to 568,075.28, 783,749.93 and 323,035.70

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Solution

The fourth proportional to 568,075.28, 783,749.93 and 323,035.70 is: 445,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,075.28 : 783,749.93 = 323,035.70 : x
  2. Step 2: Convert to fraction form
    568,075.28/783,749.93 = 323,035.70/x
  3. Step 3: Cross multiply
    568,075.28x = 783,749.93 × 323,035.70
  4. Step 4: Simplify right side
    568,075.28x = 253,179,201,728.57
  5. Step 5: Solve for x
    x = 253,179,201,728.57/568,075.28
  6. Step 6: Final answer
    x = 445,678.97

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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.