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Finding the Fourth Proportional to 572,896.65, 790,610.94 and 314,771.16

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Solution

The fourth proportional to 572,896.65, 790,610.94 and 314,771.16 is: 434,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,896.65 : 790,610.94 = 314,771.16 : x
  2. Step 2: Convert to fraction form
    572,896.65/790,610.94 = 314,771.16/x
  3. Step 3: Cross multiply
    572,896.65x = 790,610.94 × 314,771.16
  4. Step 4: Simplify right side
    572,896.65x = 248,861,522,692.49
  5. Step 5: Solve for x
    x = 248,861,522,692.49/572,896.65
  6. Step 6: Final answer
    x = 434,391.65

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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.