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Finding the Fourth Proportional to 498,980.70, 748,580.40 and 246,382.20

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Solution

The fourth proportional to 498,980.70, 748,580.40 and 246,382.20 is: 369,627.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,980.70 : 748,580.40 = 246,382.20 : x
  2. Step 2: Convert to fraction form
    498,980.70/748,580.40 = 246,382.20/x
  3. Step 3: Cross multiply
    498,980.70x = 748,580.40 × 246,382.20
  4. Step 4: Simplify right side
    498,980.70x = 184,436,885,828.88
  5. Step 5: Solve for x
    x = 184,436,885,828.88/498,980.70
  6. Step 6: Final answer
    x = 369,627.29

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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.