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Finding the Fourth Proportional to 418,453.43, 627,585.83 and 118,927.38

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Solution

The fourth proportional to 418,453.43, 627,585.83 and 118,927.38 is: 178,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,453.43 : 627,585.83 = 118,927.38 : x
  2. Step 2: Convert to fraction form
    418,453.43/627,585.83 = 118,927.38/x
  3. Step 3: Cross multiply
    418,453.43x = 627,585.83 × 118,927.38
  4. Step 4: Simplify right side
    418,453.43x = 74,637,138,784.34
  5. Step 5: Solve for x
    x = 74,637,138,784.34/418,453.43
  6. Step 6: Final answer
    x = 178,364.26

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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.