Home / 811,661.81-1,120,094.61-449,100.95

Finding the Fourth Proportional to 811,661.81, 1,120,094.61 and 449,100.95

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Solution

The fourth proportional to 811,661.81, 1,120,094.61 and 449,100.95 is: 619,760.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,661.81 : 1,120,094.61 = 449,100.95 : x
  2. Step 2: Convert to fraction form
    811,661.81/1,120,094.61 = 449,100.95/x
  3. Step 3: Cross multiply
    811,661.81x = 1,120,094.61 × 449,100.95
  4. Step 4: Simplify right side
    811,661.81x = 503,035,553,440.88
  5. Step 5: Solve for x
    x = 503,035,553,440.88/811,661.81
  6. Step 6: Final answer
    x = 619,760.04

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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.