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Finding the Fourth Proportional to 572,522.52, 788,781.30 and 443,015.64

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Solution

The fourth proportional to 572,522.52, 788,781.30 and 443,015.64 is: 610,355.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,522.52 : 788,781.30 = 443,015.64 : x
  2. Step 2: Convert to fraction form
    572,522.52/788,781.30 = 443,015.64/x
  3. Step 3: Cross multiply
    572,522.52x = 788,781.30 × 443,015.64
  4. Step 4: Simplify right side
    572,522.52x = 349,442,452,439.53
  5. Step 5: Solve for x
    x = 349,442,452,439.53/572,522.52
  6. Step 6: Final answer
    x = 610,355.82

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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.