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Finding the Fourth Proportional to 417,863.17, 626,887.70 and 151,617.79

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Solution

The fourth proportional to 417,863.17, 626,887.70 and 151,617.79 is: 227,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,863.17 : 626,887.70 = 151,617.79 : x
  2. Step 2: Convert to fraction form
    417,863.17/626,887.70 = 151,617.79/x
  3. Step 3: Cross multiply
    417,863.17x = 626,887.70 × 151,617.79
  4. Step 4: Simplify right side
    417,863.17x = 95,047,329,099.12
  5. Step 5: Solve for x
    x = 95,047,329,099.12/417,863.17
  6. Step 6: Final answer
    x = 227,460.41

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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.