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Finding the Fourth Proportional to 572,879.33, 790,575.74 and 314,777.19

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Solution

The fourth proportional to 572,879.33, 790,575.74 and 314,777.19 is: 434,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,879.33 : 790,575.74 = 314,777.19 : x
  2. Step 2: Convert to fraction form
    572,879.33/790,575.74 = 314,777.19/x
  3. Step 3: Cross multiply
    572,879.33x = 790,575.74 × 314,777.19
  4. Step 4: Simplify right side
    572,879.33x = 248,855,209,814.19
  5. Step 5: Solve for x
    x = 248,855,209,814.19/572,879.33
  6. Step 6: Final answer
    x = 434,393.76

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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.