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Finding the Fourth Proportional to 488,018.70, 673,480.17 and 273,158.10

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Solution

The fourth proportional to 488,018.70, 673,480.17 and 273,158.10 is: 376,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,018.70 : 673,480.17 = 273,158.10 : x
  2. Step 2: Convert to fraction form
    488,018.70/673,480.17 = 273,158.10/x
  3. Step 3: Cross multiply
    488,018.70x = 673,480.17 × 273,158.10
  4. Step 4: Simplify right side
    488,018.70x = 183,966,563,624.88
  5. Step 5: Solve for x
    x = 183,966,563,624.88/488,018.70
  6. Step 6: Final answer
    x = 376,966.22

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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.