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Finding the Fourth Proportional to 418,368.99, 627,185.43 and 165,826.74

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Solution

The fourth proportional to 418,368.99, 627,185.43 and 165,826.74 is: 248,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,368.99 : 627,185.43 = 165,826.74 : x
  2. Step 2: Convert to fraction form
    418,368.99/627,185.43 = 165,826.74/x
  3. Step 3: Cross multiply
    418,368.99x = 627,185.43 × 165,826.74
  4. Step 4: Simplify right side
    418,368.99x = 104,004,117,584.34
  5. Step 5: Solve for x
    x = 104,004,117,584.34/418,368.99
  6. Step 6: Final answer
    x = 248,594.23

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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.