Home / 517,721.66-776,635.61-198,142.34

Finding the Fourth Proportional to 517,721.66, 776,635.61 and 198,142.34

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Solution

The fourth proportional to 517,721.66, 776,635.61 and 198,142.34 is: 297,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,721.66 : 776,635.61 = 198,142.34 : x
  2. Step 2: Convert to fraction form
    517,721.66/776,635.61 = 198,142.34/x
  3. Step 3: Cross multiply
    517,721.66x = 776,635.61 × 198,142.34
  4. Step 4: Simplify right side
    517,721.66x = 153,884,398,043.61
  5. Step 5: Solve for x
    x = 153,884,398,043.61/517,721.66
  6. Step 6: Final answer
    x = 297,233.84

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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.