Home / 621,110.24-857,398.20-427,789.16

Finding the Fourth Proportional to 621,110.24, 857,398.20 and 427,789.16

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Solution

The fourth proportional to 621,110.24, 857,398.20 and 427,789.16 is: 590,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,110.24 : 857,398.20 = 427,789.16 : x
  2. Step 2: Convert to fraction form
    621,110.24/857,398.20 = 427,789.16/x
  3. Step 3: Cross multiply
    621,110.24x = 857,398.20 × 427,789.16
  4. Step 4: Simplify right side
    621,110.24x = 366,785,655,763.51
  5. Step 5: Solve for x
    x = 366,785,655,763.51/621,110.24
  6. Step 6: Final answer
    x = 590,532.30

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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.