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Finding the Fourth Proportional to 482,624.96, 666,081.53 and 278,675.36

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Solution

The fourth proportional to 482,624.96, 666,081.53 and 278,675.36 is: 384,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,624.96 : 666,081.53 = 278,675.36 : x
  2. Step 2: Convert to fraction form
    482,624.96/666,081.53 = 278,675.36/x
  3. Step 3: Cross multiply
    482,624.96x = 666,081.53 × 278,675.36
  4. Step 4: Simplify right side
    482,624.96x = 185,620,510,854.51
  5. Step 5: Solve for x
    x = 185,620,510,854.51/482,624.96
  6. Step 6: Final answer
    x = 384,606.12

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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.