Home / 661,532.10-991,426.23-261,954.89

Finding the Fourth Proportional to 661,532.10, 991,426.23 and 261,954.89

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Solution

The fourth proportional to 661,532.10, 991,426.23 and 261,954.89 is: 392,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,532.10 : 991,426.23 = 261,954.89 : x
  2. Step 2: Convert to fraction form
    661,532.10/991,426.23 = 261,954.89/x
  3. Step 3: Cross multiply
    661,532.10x = 991,426.23 × 261,954.89
  4. Step 4: Simplify right side
    661,532.10x = 259,708,947,783.48
  5. Step 5: Solve for x
    x = 259,708,947,783.48/661,532.10
  6. Step 6: Final answer
    x = 392,587.07

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1.5x scale

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.