Home / 661,865.20-992,502.54-188,439.80

Finding the Fourth Proportional to 661,865.20, 992,502.54 and 188,439.80

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Solution

The fourth proportional to 661,865.20, 992,502.54 and 188,439.80 is: 282,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,865.20 : 992,502.54 = 188,439.80 : x
  2. Step 2: Convert to fraction form
    661,865.20/992,502.54 = 188,439.80/x
  3. Step 3: Cross multiply
    661,865.20x = 992,502.54 × 188,439.80
  4. Step 4: Simplify right side
    661,865.20x = 187,026,980,137.09
  5. Step 5: Solve for x
    x = 187,026,980,137.09/661,865.20
  6. Step 6: Final answer
    x = 282,575.64

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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.