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Finding the Fourth Proportional to 418,244.73, 627,365.84 and 118,725.57

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Solution

The fourth proportional to 418,244.73, 627,365.84 and 118,725.57 is: 178,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,244.73 : 627,365.84 = 118,725.57 : x
  2. Step 2: Convert to fraction form
    418,244.73/627,365.84 = 118,725.57/x
  3. Step 3: Cross multiply
    418,244.73x = 627,365.84 × 118,725.57
  4. Step 4: Simplify right side
    418,244.73x = 74,484,366,358.90
  5. Step 5: Solve for x
    x = 74,484,366,358.90/418,244.73
  6. Step 6: Final answer
    x = 178,088.00

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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.