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Finding the Fourth Proportional to 536,991.30, 804,565.35 and 255,903.30

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Solution

The fourth proportional to 536,991.30, 804,565.35 and 255,903.30 is: 383,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,991.30 : 804,565.35 = 255,903.30 : x
  2. Step 2: Convert to fraction form
    536,991.30/804,565.35 = 255,903.30/x
  3. Step 3: Cross multiply
    536,991.30x = 804,565.35 × 255,903.30
  4. Step 4: Simplify right side
    536,991.30x = 205,890,928,130.66
  5. Step 5: Solve for x
    x = 205,890,928,130.66/536,991.30
  6. Step 6: Final answer
    x = 383,415.76

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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.