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Finding the Fourth Proportional to 442,847.60, 664,271.40 and 413,104.40

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Solution

The fourth proportional to 442,847.60, 664,271.40 and 413,104.40 is: 619,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,847.60 : 664,271.40 = 413,104.40 : x
  2. Step 2: Convert to fraction form
    442,847.60/664,271.40 = 413,104.40/x
  3. Step 3: Cross multiply
    442,847.60x = 664,271.40 × 413,104.40
  4. Step 4: Simplify right side
    442,847.60x = 274,413,438,134.16
  5. Step 5: Solve for x
    x = 274,413,438,134.16/442,847.60
  6. Step 6: Final answer
    x = 619,656.60

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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.