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Finding the Fourth Proportional to 550,811.10, 826,216.65 and 529,815.90

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Solution

The fourth proportional to 550,811.10, 826,216.65 and 529,815.90 is: 794,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,811.10 : 826,216.65 = 529,815.90 : x
  2. Step 2: Convert to fraction form
    550,811.10/826,216.65 = 529,815.90/x
  3. Step 3: Cross multiply
    550,811.10x = 826,216.65 × 529,815.90
  4. Step 4: Simplify right side
    550,811.10x = 437,742,718,014.74
  5. Step 5: Solve for x
    x = 437,742,718,014.74/550,811.10
  6. Step 6: Final answer
    x = 794,723.85

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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.