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Finding the Fourth Proportional to 424,271.61, 637,573.86 and 396,530.73

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Solution

The fourth proportional to 424,271.61, 637,573.86 and 396,530.73 is: 595,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,271.61 : 637,573.86 = 396,530.73 : x
  2. Step 2: Convert to fraction form
    424,271.61/637,573.86 = 396,530.73/x
  3. Step 3: Cross multiply
    424,271.61x = 637,573.86 × 396,530.73
  4. Step 4: Simplify right side
    424,271.61x = 252,817,628,134.72
  5. Step 5: Solve for x
    x = 252,817,628,134.72/424,271.61
  6. Step 6: Final answer
    x = 595,886.27

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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.