Home / 1,131,681.60-1,561,720.32-622,416.96

Finding the Fourth Proportional to 1,131,681.60, 1,561,720.32 and 622,416.96

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Solution

The fourth proportional to 1,131,681.60, 1,561,720.32 and 622,416.96 is: 858,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,681.60 : 1,561,720.32 = 622,416.96 : x
  2. Step 2: Convert to fraction form
    1,131,681.60/1,561,720.32 = 622,416.96/x
  3. Step 3: Cross multiply
    1,131,681.60x = 1,561,720.32 × 622,416.96
  4. Step 4: Simplify right side
    1,131,681.60x = 972,041,213,944.63
  5. Step 5: Solve for x
    x = 972,041,213,944.63/1,131,681.60
  6. Step 6: Final answer
    x = 858,935.25

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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.