Home / 905,669.40-1,250,205.12-611,376.96

Finding the Fourth Proportional to 905,669.40, 1,250,205.12 and 611,376.96

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Solution

The fourth proportional to 905,669.40, 1,250,205.12 and 611,376.96 is: 843,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,669.40 : 1,250,205.12 = 611,376.96 : x
  2. Step 2: Convert to fraction form
    905,669.40/1,250,205.12 = 611,376.96/x
  3. Step 3: Cross multiply
    905,669.40x = 1,250,205.12 × 611,376.96
  4. Step 4: Simplify right side
    905,669.40x = 764,346,605,642.04
  5. Step 5: Solve for x
    x = 764,346,605,642.04/905,669.40
  6. Step 6: Final answer
    x = 843,957.64

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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.