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Finding the Fourth Proportional to 418,572.40, 627,844.72 and 181,915.36

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Solution

The fourth proportional to 418,572.40, 627,844.72 and 181,915.36 is: 272,867.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,572.40 : 627,844.72 = 181,915.36 : x
  2. Step 2: Convert to fraction form
    418,572.40/627,844.72 = 181,915.36/x
  3. Step 3: Cross multiply
    418,572.40x = 627,844.72 × 181,915.36
  4. Step 4: Simplify right side
    418,572.40x = 114,214,598,262.90
  5. Step 5: Solve for x
    x = 114,214,598,262.90/418,572.40
  6. Step 6: Final answer
    x = 272,867.01

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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.