Home / 621,108.24-857,395.44-427,787.16

Finding the Fourth Proportional to 621,108.24, 857,395.44 and 427,787.16

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Solution

The fourth proportional to 621,108.24, 857,395.44 and 427,787.16 is: 590,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,108.24 : 857,395.44 = 427,787.16 : x
  2. Step 2: Convert to fraction form
    621,108.24/857,395.44 = 427,787.16/x
  3. Step 3: Cross multiply
    621,108.24x = 857,395.44 × 427,787.16
  4. Step 4: Simplify right side
    621,108.24x = 366,782,760,274.55
  5. Step 5: Solve for x
    x = 366,782,760,274.55/621,108.24
  6. Step 6: Final answer
    x = 590,529.54

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Double scale
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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.