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Finding the Fourth Proportional to 533,229.10, 735,864.94 and 318,387.94

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Solution

The fourth proportional to 533,229.10, 735,864.94 and 318,387.94 is: 439,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,229.10 : 735,864.94 = 318,387.94 : x
  2. Step 2: Convert to fraction form
    533,229.10/735,864.94 = 318,387.94/x
  3. Step 3: Cross multiply
    533,229.10x = 735,864.94 × 318,387.94
  4. Step 4: Simplify right side
    533,229.10x = 234,290,522,364.82
  5. Step 5: Solve for x
    x = 234,290,522,364.82/533,229.10
  6. Step 6: Final answer
    x = 439,380.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.