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Finding the Fourth Proportional to 470,204.53, 648,882.36 and 255,344.54

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Solution

The fourth proportional to 470,204.53, 648,882.36 and 255,344.54 is: 352,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,204.53 : 648,882.36 = 255,344.54 : x
  2. Step 2: Convert to fraction form
    470,204.53/648,882.36 = 255,344.54/x
  3. Step 3: Cross multiply
    470,204.53x = 648,882.36 × 255,344.54
  4. Step 4: Simplify right side
    470,204.53x = 165,688,564,483.90
  5. Step 5: Solve for x
    x = 165,688,564,483.90/470,204.53
  6. Step 6: Final answer
    x = 352,375.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.