Home / 1,230,188.35-1,697,660.99-686,324.25

Finding the Fourth Proportional to 1,230,188.35, 1,697,660.99 and 686,324.25

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Solution

The fourth proportional to 1,230,188.35, 1,697,660.99 and 686,324.25 is: 947,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,188.35 : 1,697,660.99 = 686,324.25 : x
  2. Step 2: Convert to fraction form
    1,230,188.35/1,697,660.99 = 686,324.25/x
  3. Step 3: Cross multiply
    1,230,188.35x = 1,697,660.99 × 686,324.25
  4. Step 4: Simplify right side
    1,230,188.35x = 1,165,145,902,284.39
  5. Step 5: Solve for x
    x = 1,165,145,902,284.39/1,230,188.35
  6. Step 6: Final answer
    x = 947,128.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.