Home / 836,992.89-1,155,001.14-455,016.33

Finding the Fourth Proportional to 836,992.89, 1,155,001.14 and 455,016.33

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Solution

The fourth proportional to 836,992.89, 1,155,001.14 and 455,016.33 is: 627,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,992.89 : 1,155,001.14 = 455,016.33 : x
  2. Step 2: Convert to fraction form
    836,992.89/1,155,001.14 = 455,016.33/x
  3. Step 3: Cross multiply
    836,992.89x = 1,155,001.14 × 455,016.33
  4. Step 4: Simplify right side
    836,992.89x = 525,544,379,868.62
  5. Step 5: Solve for x
    x = 525,544,379,868.62/836,992.89
  6. Step 6: Final answer
    x = 627,895.87

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Double scale
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1.5x scale

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.