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Finding the Fourth Proportional to 448,633.80, 619,097.46 and 247,429.80

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Solution

The fourth proportional to 448,633.80, 619,097.46 and 247,429.80 is: 341,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,633.80 : 619,097.46 = 247,429.80 : x
  2. Step 2: Convert to fraction form
    448,633.80/619,097.46 = 247,429.80/x
  3. Step 3: Cross multiply
    448,633.80x = 619,097.46 × 247,429.80
  4. Step 4: Simplify right side
    448,633.80x = 153,183,160,708.31
  5. Step 5: Solve for x
    x = 153,183,160,708.31/448,633.80
  6. Step 6: Final answer
    x = 341,443.65

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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.