Home / 686,441.16-1,029,646.86-187,805.16

Finding the Fourth Proportional to 686,441.16, 1,029,646.86 and 187,805.16

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Solution

The fourth proportional to 686,441.16, 1,029,646.86 and 187,805.16 is: 281,703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,441.16 : 1,029,646.86 = 187,805.16 : x
  2. Step 2: Convert to fraction form
    686,441.16/1,029,646.86 = 187,805.16/x
  3. Step 3: Cross multiply
    686,441.16x = 1,029,646.86 × 187,805.16
  4. Step 4: Simplify right side
    686,441.16x = 193,372,993,285.80
  5. Step 5: Solve for x
    x = 193,372,993,285.80/686,441.16
  6. Step 6: Final answer
    x = 281,703.67

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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.