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Finding the Fourth Proportional to 544,955.72, 817,438.14 and 189,969.17

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Solution

The fourth proportional to 544,955.72, 817,438.14 and 189,969.17 is: 284,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,955.72 : 817,438.14 = 189,969.17 : x
  2. Step 2: Convert to fraction form
    544,955.72/817,438.14 = 189,969.17/x
  3. Step 3: Cross multiply
    544,955.72x = 817,438.14 × 189,969.17
  4. Step 4: Simplify right side
    544,955.72x = 155,288,044,032.30
  5. Step 5: Solve for x
    x = 155,288,044,032.30/544,955.72
  6. Step 6: Final answer
    x = 284,955.34

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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.