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Finding the Fourth Proportional to 573,992.92, 792,090.35 and 315,845.72

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Solution

The fourth proportional to 573,992.92, 792,090.35 and 315,845.72 is: 435,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,992.92 : 792,090.35 = 315,845.72 : x
  2. Step 2: Convert to fraction form
    573,992.92/792,090.35 = 315,845.72/x
  3. Step 3: Cross multiply
    573,992.92x = 792,090.35 × 315,845.72
  4. Step 4: Simplify right side
    573,992.92x = 250,178,350,859.71
  5. Step 5: Solve for x
    x = 250,178,350,859.71/573,992.92
  6. Step 6: Final answer
    x = 435,856.16

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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.