Home / 579,017.89-868,485.11-179,648.38

Finding the Fourth Proportional to 579,017.89, 868,485.11 and 179,648.38

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Solution

The fourth proportional to 579,017.89, 868,485.11 and 179,648.38 is: 269,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,017.89 : 868,485.11 = 179,648.38 : x
  2. Step 2: Convert to fraction form
    579,017.89/868,485.11 = 179,648.38/x
  3. Step 3: Cross multiply
    579,017.89x = 868,485.11 × 179,648.38
  4. Step 4: Simplify right side
    579,017.89x = 156,021,938,723.20
  5. Step 5: Solve for x
    x = 156,021,938,723.20/579,017.89
  6. Step 6: Final answer
    x = 269,459.62

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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.