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Finding the Fourth Proportional to 551,431.79, 825,985.23 and 252,164.23

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Solution

The fourth proportional to 551,431.79, 825,985.23 and 252,164.23 is: 377,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,431.79 : 825,985.23 = 252,164.23 : x
  2. Step 2: Convert to fraction form
    551,431.79/825,985.23 = 252,164.23/x
  3. Step 3: Cross multiply
    551,431.79x = 825,985.23 × 252,164.23
  4. Step 4: Simplify right side
    551,431.79x = 208,283,929,514.32
  5. Step 5: Solve for x
    x = 208,283,929,514.32/551,431.79
  6. Step 6: Final answer
    x = 377,714.77

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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.