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Finding the Fourth Proportional to 418,573.32, 627,845.88 and 181,916.01

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Solution

The fourth proportional to 418,573.32, 627,845.88 and 181,916.01 is: 272,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,573.32 : 627,845.88 = 181,916.01 : x
  2. Step 2: Convert to fraction form
    418,573.32/627,845.88 = 181,916.01/x
  3. Step 3: Cross multiply
    418,573.32x = 627,845.88 × 181,916.01
  4. Step 4: Simplify right side
    418,573.32x = 114,215,217,384.54
  5. Step 5: Solve for x
    x = 114,215,217,384.54/418,573.32
  6. Step 6: Final answer
    x = 272,867.89

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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.