Home / 621,112.24-857,400.96-427,791.16

Finding the Fourth Proportional to 621,112.24, 857,400.96 and 427,791.16

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Solution

The fourth proportional to 621,112.24, 857,400.96 and 427,791.16 is: 590,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,112.24 : 857,400.96 = 427,791.16 : x
  2. Step 2: Convert to fraction form
    621,112.24/857,400.96 = 427,791.16/x
  3. Step 3: Cross multiply
    621,112.24x = 857,400.96 × 427,791.16
  4. Step 4: Simplify right side
    621,112.24x = 366,788,551,263.51
  5. Step 5: Solve for x
    x = 366,788,551,263.51/621,112.24
  6. Step 6: Final answer
    x = 590,535.06

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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.