Home / 439,392.36-659,088.54-139,871.64

Finding the Fourth Proportional to 439,392.36, 659,088.54 and 139,871.64

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Solution

The fourth proportional to 439,392.36, 659,088.54 and 139,871.64 is: 209,807.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,392.36 : 659,088.54 = 139,871.64 : x
  2. Step 2: Convert to fraction form
    439,392.36/659,088.54 = 139,871.64/x
  3. Step 3: Cross multiply
    439,392.36x = 659,088.54 × 139,871.64
  4. Step 4: Simplify right side
    439,392.36x = 92,187,794,995.01
  5. Step 5: Solve for x
    x = 92,187,794,995.01/439,392.36
  6. Step 6: Final answer
    x = 209,807.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.