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Finding the Fourth Proportional to 573,474.48, 791,308.08 and 328,421.12

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Solution

The fourth proportional to 573,474.48, 791,308.08 and 328,421.12 is: 453,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,474.48 : 791,308.08 = 328,421.12 : x
  2. Step 2: Convert to fraction form
    573,474.48/791,308.08 = 328,421.12/x
  3. Step 3: Cross multiply
    573,474.48x = 791,308.08 × 328,421.12
  4. Step 4: Simplify right side
    573,474.48x = 259,882,285,898.65
  5. Step 5: Solve for x
    x = 259,882,285,898.65/573,474.48
  6. Step 6: Final answer
    x = 453,171.49

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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.