Home / 1,205,987.54-1,664,188.20-662,120.26

Finding the Fourth Proportional to 1,205,987.54, 1,664,188.20 and 662,120.26

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Solution

The fourth proportional to 1,205,987.54, 1,664,188.20 and 662,120.26 is: 913,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,987.54 : 1,664,188.20 = 662,120.26 : x
  2. Step 2: Convert to fraction form
    1,205,987.54/1,664,188.20 = 662,120.26/x
  3. Step 3: Cross multiply
    1,205,987.54x = 1,664,188.20 × 662,120.26
  4. Step 4: Simplify right side
    1,205,987.54x = 1,101,892,719,512.46
  5. Step 5: Solve for x
    x = 1,101,892,719,512.46/1,205,987.54
  6. Step 6: Final answer
    x = 913,685.00

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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.