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Finding the Fourth Proportional to 552,661.10, 828,991.65 and 543,329.90

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Solution

The fourth proportional to 552,661.10, 828,991.65 and 543,329.90 is: 814,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,661.10 : 828,991.65 = 543,329.90 : x
  2. Step 2: Convert to fraction form
    552,661.10/828,991.65 = 543,329.90/x
  3. Step 3: Cross multiply
    552,661.10x = 828,991.65 × 543,329.90
  4. Step 4: Simplify right side
    552,661.10x = 450,415,950,295.34
  5. Step 5: Solve for x
    x = 450,415,950,295.34/552,661.10
  6. Step 6: Final answer
    x = 814,994.85

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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.