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Finding the Fourth Proportional to 528,514.76, 792,509.28 and 168,638.45

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Solution

The fourth proportional to 528,514.76, 792,509.28 and 168,638.45 is: 252,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,514.76 : 792,509.28 = 168,638.45 : x
  2. Step 2: Convert to fraction form
    528,514.76/792,509.28 = 168,638.45/x
  3. Step 3: Cross multiply
    528,514.76x = 792,509.28 × 168,638.45
  4. Step 4: Simplify right side
    528,514.76x = 133,647,532,627.27
  5. Step 5: Solve for x
    x = 133,647,532,627.27/528,514.76
  6. Step 6: Final answer
    x = 252,873.80

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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.