Home / 691,189.76-1,036,629.12-247,957.76

Finding the Fourth Proportional to 691,189.76, 1,036,629.12 and 247,957.76

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Solution

The fourth proportional to 691,189.76, 1,036,629.12 and 247,957.76 is: 371,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,189.76 : 1,036,629.12 = 247,957.76 : x
  2. Step 2: Convert to fraction form
    691,189.76/1,036,629.12 = 247,957.76/x
  3. Step 3: Cross multiply
    691,189.76x = 1,036,629.12 × 247,957.76
  4. Step 4: Simplify right side
    691,189.76x = 257,040,234,545.97
  5. Step 5: Solve for x
    x = 257,040,234,545.97/691,189.76
  6. Step 6: Final answer
    x = 371,880.85

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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.