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Finding the Fourth Proportional to 574,854.52, 862,650.83 and 385,528.69

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Solution

The fourth proportional to 574,854.52, 862,650.83 and 385,528.69 is: 578,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,854.52 : 862,650.83 = 385,528.69 : x
  2. Step 2: Convert to fraction form
    574,854.52/862,650.83 = 385,528.69/x
  3. Step 3: Cross multiply
    574,854.52x = 862,650.83 × 385,528.69
  4. Step 4: Simplify right side
    574,854.52x = 332,576,644,417.31
  5. Step 5: Solve for x
    x = 332,576,644,417.31/574,854.52
  6. Step 6: Final answer
    x = 578,540.54

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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.