Home / 1,131,392.64-1,561,327.68-622,128

Finding the Fourth Proportional to 1,131,392.64, 1,561,327.68 and 622,128

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Solution

The fourth proportional to 1,131,392.64, 1,561,327.68 and 622,128 is: 858,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,392.64 : 1,561,327.68 = 622,128 : x
  2. Step 2: Convert to fraction form
    1,131,392.64/1,561,327.68 = 622,128/x
  3. Step 3: Cross multiply
    1,131,392.64x = 1,561,327.68 × 622,128
  4. Step 4: Simplify right side
    1,131,392.64x = 971,345,666,903.04
  5. Step 5: Solve for x
    x = 971,345,666,903.04/1,131,392.64
  6. Step 6: Final answer
    x = 858,539.85

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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.