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Finding the Fourth Proportional to 572,422.92, 858,652.58 and 287,958.00

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Solution

The fourth proportional to 572,422.92, 858,652.58 and 287,958.00 is: 431,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,422.92 : 858,652.58 = 287,958.00 : x
  2. Step 2: Convert to fraction form
    572,422.92/858,652.58 = 287,958.00/x
  3. Step 3: Cross multiply
    572,422.92x = 858,652.58 × 287,958.00
  4. Step 4: Simplify right side
    572,422.92x = 247,255,883,571.48
  5. Step 5: Solve for x
    x = 247,255,883,571.48/572,422.92
  6. Step 6: Final answer
    x = 431,946.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.