Home / 686,324.40-1,029,486.60-187,688.40

Finding the Fourth Proportional to 686,324.40, 1,029,486.60 and 187,688.40

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Solution

The fourth proportional to 686,324.40, 1,029,486.60 and 187,688.40 is: 281,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,324.40 : 1,029,486.60 = 187,688.40 : x
  2. Step 2: Convert to fraction form
    686,324.40/1,029,486.60 = 187,688.40/x
  3. Step 3: Cross multiply
    686,324.40x = 1,029,486.60 × 187,688.40
  4. Step 4: Simplify right side
    686,324.40x = 193,222,692,775.44
  5. Step 5: Solve for x
    x = 193,222,692,775.44/686,324.40
  6. Step 6: Final answer
    x = 281,532.60

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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.