Home / 961,815.30-1,327,066.65-621,874.50

Finding the Fourth Proportional to 961,815.30, 1,327,066.65 and 621,874.50

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Solution

The fourth proportional to 961,815.30, 1,327,066.65 and 621,874.50 is: 858,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,815.30 : 1,327,066.65 = 621,874.50 : x
  2. Step 2: Convert to fraction form
    961,815.30/1,327,066.65 = 621,874.50/x
  3. Step 3: Cross multiply
    961,815.30x = 1,327,066.65 × 621,874.50
  4. Step 4: Simplify right side
    961,815.30x = 825,268,909,435.43
  5. Step 5: Solve for x
    x = 825,268,909,435.43/961,815.30
  6. Step 6: Final answer
    x = 858,032.63

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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.