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Finding the Fourth Proportional to 418,581.40, 627,492.36 and 152,153.74

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Solution

The fourth proportional to 418,581.40, 627,492.36 and 152,153.74 is: 228,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,581.40 : 627,492.36 = 152,153.74 : x
  2. Step 2: Convert to fraction form
    418,581.40/627,492.36 = 152,153.74/x
  3. Step 3: Cross multiply
    418,581.40x = 627,492.36 × 152,153.74
  4. Step 4: Simplify right side
    418,581.40x = 95,475,309,395.43
  5. Step 5: Solve for x
    x = 95,475,309,395.43/418,581.40
  6. Step 6: Final answer
    x = 228,092.58

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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.