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Finding the Fourth Proportional to 570,763.17, 856,153.13 and 271,274.31

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Solution

The fourth proportional to 570,763.17, 856,153.13 and 271,274.31 is: 406,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,763.17 : 856,153.13 = 271,274.31 : x
  2. Step 2: Convert to fraction form
    570,763.17/856,153.13 = 271,274.31/x
  3. Step 3: Cross multiply
    570,763.17x = 856,153.13 × 271,274.31
  4. Step 4: Simplify right side
    570,763.17x = 232,252,348,238.72
  5. Step 5: Solve for x
    x = 232,252,348,238.72/570,763.17
  6. Step 6: Final answer
    x = 406,915.44

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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.