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Finding the Fourth Proportional to 531,329.96, 797,042.79 and 171,509.34

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Solution

The fourth proportional to 531,329.96, 797,042.79 and 171,509.34 is: 257,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,329.96 : 797,042.79 = 171,509.34 : x
  2. Step 2: Convert to fraction form
    531,329.96/797,042.79 = 171,509.34/x
  3. Step 3: Cross multiply
    531,329.96x = 797,042.79 × 171,509.34
  4. Step 4: Simplify right side
    531,329.96x = 136,700,278,879.45
  5. Step 5: Solve for x
    x = 136,700,278,879.45/531,329.96
  6. Step 6: Final answer
    x = 257,279.45

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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.