Home / 836,990.89-1,154,998.38-455,014.33

Finding the Fourth Proportional to 836,990.89, 1,154,998.38 and 455,014.33

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Solution

The fourth proportional to 836,990.89, 1,154,998.38 and 455,014.33 is: 627,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,990.89 : 1,154,998.38 = 455,014.33 : x
  2. Step 2: Convert to fraction form
    836,990.89/1,154,998.38 = 455,014.33/x
  3. Step 3: Cross multiply
    836,990.89x = 1,154,998.38 × 455,014.33
  4. Step 4: Simplify right side
    836,990.89x = 525,540,814,026.79
  5. Step 5: Solve for x
    x = 525,540,814,026.79/836,990.89
  6. Step 6: Final answer
    x = 627,893.11

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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.