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Finding the Fourth Proportional to 482,902.16, 666,400.16 and 268,036.70

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Solution

The fourth proportional to 482,902.16, 666,400.16 and 268,036.70 is: 369,887.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,902.16 : 666,400.16 = 268,036.70 : x
  2. Step 2: Convert to fraction form
    482,902.16/666,400.16 = 268,036.70/x
  3. Step 3: Cross multiply
    482,902.16x = 666,400.16 × 268,036.70
  4. Step 4: Simplify right side
    482,902.16x = 178,619,697,103.96
  5. Step 5: Solve for x
    x = 178,619,697,103.96/482,902.16
  6. Step 6: Final answer
    x = 369,887.97

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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.