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Finding the Fourth Proportional to 528,645.69, 793,103.81 and 173,662.79

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Solution

The fourth proportional to 528,645.69, 793,103.81 and 173,662.79 is: 260,538.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,645.69 : 793,103.81 = 173,662.79 : x
  2. Step 2: Convert to fraction form
    528,645.69/793,103.81 = 173,662.79/x
  3. Step 3: Cross multiply
    528,645.69x = 793,103.81 × 173,662.79
  4. Step 4: Simplify right side
    528,645.69x = 137,732,615,570.40
  5. Step 5: Solve for x
    x = 137,732,615,570.40/528,645.69
  6. Step 6: Final answer
    x = 260,538.61

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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.