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Finding the Fourth Proportional to 534,111.40, 800,130.30 and 297,029.80

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Solution

The fourth proportional to 534,111.40, 800,130.30 and 297,029.80 is: 444,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,111.40 : 800,130.30 = 297,029.80 : x
  2. Step 2: Convert to fraction form
    534,111.40/800,130.30 = 297,029.80/x
  3. Step 3: Cross multiply
    534,111.40x = 800,130.30 × 297,029.80
  4. Step 4: Simplify right side
    534,111.40x = 237,662,542,982.94
  5. Step 5: Solve for x
    x = 237,662,542,982.94/534,111.40
  6. Step 6: Final answer
    x = 444,968.12

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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.