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Finding the Fourth Proportional to 528,019.20, 792,021.60 and 173,044.80

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Solution

The fourth proportional to 528,019.20, 792,021.60 and 173,044.80 is: 259,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,019.20 : 792,021.60 = 173,044.80 : x
  2. Step 2: Convert to fraction form
    528,019.20/792,021.60 = 173,044.80/x
  3. Step 3: Cross multiply
    528,019.20x = 792,021.60 × 173,044.80
  4. Step 4: Simplify right side
    528,019.20x = 137,055,219,367.68
  5. Step 5: Solve for x
    x = 137,055,219,367.68/528,019.20
  6. Step 6: Final answer
    x = 259,564.84

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1.5x scale

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.