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Finding the Fourth Proportional to 418,662.95, 627,825.35 and 162,360.59

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Solution

The fourth proportional to 418,662.95, 627,825.35 and 162,360.59 is: 243,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,662.95 : 627,825.35 = 162,360.59 : x
  2. Step 2: Convert to fraction form
    418,662.95/627,825.35 = 162,360.59/x
  3. Step 3: Cross multiply
    418,662.95x = 627,825.35 × 162,360.59
  4. Step 4: Simplify right side
    418,662.95x = 101,934,091,509.73
  5. Step 5: Solve for x
    x = 101,934,091,509.73/418,662.95
  6. Step 6: Final answer
    x = 243,475.31

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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.