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Finding the Fourth Proportional to 573,175.48, 790,919.36 and 331,421.47

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Solution

The fourth proportional to 573,175.48, 790,919.36 and 331,421.47 is: 457,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,175.48 : 790,919.36 = 331,421.47 : x
  2. Step 2: Convert to fraction form
    573,175.48/790,919.36 = 331,421.47/x
  3. Step 3: Cross multiply
    573,175.48x = 790,919.36 × 331,421.47
  4. Step 4: Simplify right side
    573,175.48x = 262,127,656,942.66
  5. Step 5: Solve for x
    x = 262,127,656,942.66/573,175.48
  6. Step 6: Final answer
    x = 457,325.32

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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.