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Finding the Fourth Proportional to 427,644.60, 590,134.92 and 236,666.04

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Solution

The fourth proportional to 427,644.60, 590,134.92 and 236,666.04 is: 326,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,644.60 : 590,134.92 = 236,666.04 : x
  2. Step 2: Convert to fraction form
    427,644.60/590,134.92 = 236,666.04/x
  3. Step 3: Cross multiply
    427,644.60x = 590,134.92 × 236,666.04
  4. Step 4: Simplify right side
    427,644.60x = 139,664,894,582.12
  5. Step 5: Solve for x
    x = 139,664,894,582.12/427,644.60
  6. Step 6: Final answer
    x = 326,591.04

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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.