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Finding the Fourth Proportional to 573,178.01, 790,922.79 and 331,423.97

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Solution

The fourth proportional to 573,178.01, 790,922.79 and 331,423.97 is: 457,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,178.01 : 790,922.79 = 331,423.97 : x
  2. Step 2: Convert to fraction form
    573,178.01/790,922.79 = 331,423.97/x
  3. Step 3: Cross multiply
    573,178.01x = 790,922.79 × 331,423.97
  4. Step 4: Simplify right side
    573,178.01x = 262,130,767,070.66
  5. Step 5: Solve for x
    x = 262,130,767,070.66/573,178.01
  6. Step 6: Final answer
    x = 457,328.73

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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.