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Finding the Fourth Proportional to 573,939.96, 792,036.54 and 319,285.68

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Solution

The fourth proportional to 573,939.96, 792,036.54 and 319,285.68 is: 440,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,939.96 : 792,036.54 = 319,285.68 : x
  2. Step 2: Convert to fraction form
    573,939.96/792,036.54 = 319,285.68/x
  3. Step 3: Cross multiply
    573,939.96x = 792,036.54 × 319,285.68
  4. Step 4: Simplify right side
    573,939.96x = 252,885,925,258.75
  5. Step 5: Solve for x
    x = 252,885,925,258.75/573,939.96
  6. Step 6: Final answer
    x = 440,613.90

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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.