Home / 1,291,642.60-1,936,589.10-684,531.40

Finding the Fourth Proportional to 1,291,642.60, 1,936,589.10 and 684,531.40

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Solution

The fourth proportional to 1,291,642.60, 1,936,589.10 and 684,531.40 is: 1,026,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,642.60 : 1,936,589.10 = 684,531.40 : x
  2. Step 2: Convert to fraction form
    1,291,642.60/1,936,589.10 = 684,531.40/x
  3. Step 3: Cross multiply
    1,291,642.60x = 1,936,589.10 × 684,531.40
  4. Step 4: Simplify right side
    1,291,642.60x = 1,325,656,047,847.74
  5. Step 5: Solve for x
    x = 1,325,656,047,847.74/1,291,642.60
  6. Step 6: Final answer
    x = 1,026,333.48

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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.