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Finding the Fourth Proportional to 608,866.40, 913,357.20 and 165,634.40

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Solution

The fourth proportional to 608,866.40, 913,357.20 and 165,634.40 is: 248,467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,866.40 : 913,357.20 = 165,634.40 : x
  2. Step 2: Convert to fraction form
    608,866.40/913,357.20 = 165,634.40/x
  3. Step 3: Cross multiply
    608,866.40x = 913,357.20 × 165,634.40
  4. Step 4: Simplify right side
    608,866.40x = 151,283,371,807.68
  5. Step 5: Solve for x
    x = 151,283,371,807.68/608,866.40
  6. Step 6: Final answer
    x = 248,467.27

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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.