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Finding the Fourth Proportional to 555,418.24, 832,955.20 and 200,386.08

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Solution

The fourth proportional to 555,418.24, 832,955.20 and 200,386.08 is: 300,517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,418.24 : 832,955.20 = 200,386.08 : x
  2. Step 2: Convert to fraction form
    555,418.24/832,955.20 = 200,386.08/x
  3. Step 3: Cross multiply
    555,418.24x = 832,955.20 × 200,386.08
  4. Step 4: Simplify right side
    555,418.24x = 166,912,627,343.62
  5. Step 5: Solve for x
    x = 166,912,627,343.62/555,418.24
  6. Step 6: Final answer
    x = 300,517.01

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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.