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Finding the Fourth Proportional to 554,306.10, 829,383.15 and 394,750.90

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Solution

The fourth proportional to 554,306.10, 829,383.15 and 394,750.90 is: 590,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,306.10 : 829,383.15 = 394,750.90 : x
  2. Step 2: Convert to fraction form
    554,306.10/829,383.15 = 394,750.90/x
  3. Step 3: Cross multiply
    554,306.10x = 829,383.15 × 394,750.90
  4. Step 4: Simplify right side
    554,306.10x = 327,399,744,907.34
  5. Step 5: Solve for x
    x = 327,399,744,907.34/554,306.10
  6. Step 6: Final answer
    x = 590,647.92

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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.