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Finding the Fourth Proportional to 574,018.74, 792,183.72 and 319,370.46

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Solution

The fourth proportional to 574,018.74, 792,183.72 and 319,370.46 is: 440,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,018.74 : 792,183.72 = 319,370.46 : x
  2. Step 2: Convert to fraction form
    574,018.74/792,183.72 = 319,370.46/x
  3. Step 3: Cross multiply
    574,018.74x = 792,183.72 × 319,370.46
  4. Step 4: Simplify right side
    574,018.74x = 253,000,079,060.91
  5. Step 5: Solve for x
    x = 253,000,079,060.91/574,018.74
  6. Step 6: Final answer
    x = 440,752.30

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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.