Home / 684,076.80-1,026,115.20-185,440.80

Finding the Fourth Proportional to 684,076.80, 1,026,115.20 and 185,440.80

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Solution

The fourth proportional to 684,076.80, 1,026,115.20 and 185,440.80 is: 278,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,076.80 : 1,026,115.20 = 185,440.80 : x
  2. Step 2: Convert to fraction form
    684,076.80/1,026,115.20 = 185,440.80/x
  3. Step 3: Cross multiply
    684,076.80x = 1,026,115.20 × 185,440.80
  4. Step 4: Simplify right side
    684,076.80x = 190,283,623,580.16
  5. Step 5: Solve for x
    x = 190,283,623,580.16/684,076.80
  6. Step 6: Final answer
    x = 278,161.20

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Double scale
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Similar ratio
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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.