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Finding the Fourth Proportional to 525,874.73, 788,999.81 and 170,890

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Solution

The fourth proportional to 525,874.73, 788,999.81 and 170,890 is: 256,396.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,874.73 : 788,999.81 = 170,890 : x
  2. Step 2: Convert to fraction form
    525,874.73/788,999.81 = 170,890/x
  3. Step 3: Cross multiply
    525,874.73x = 788,999.81 × 170,890
  4. Step 4: Simplify right side
    525,874.73x = 134,832,177,530.90
  5. Step 5: Solve for x
    x = 134,832,177,530.90/525,874.73
  6. Step 6: Final answer
    x = 256,396.00

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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.