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Finding the Fourth Proportional to 430,772.27, 646,109.26 and 115,253.51

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Solution

The fourth proportional to 430,772.27, 646,109.26 and 115,253.51 is: 172,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,772.27 : 646,109.26 = 115,253.51 : x
  2. Step 2: Convert to fraction form
    430,772.27/646,109.26 = 115,253.51/x
  3. Step 3: Cross multiply
    430,772.27x = 646,109.26 × 115,253.51
  4. Step 4: Simplify right side
    430,772.27x = 74,466,356,539.82
  5. Step 5: Solve for x
    x = 74,466,356,539.82/430,772.27
  6. Step 6: Final answer
    x = 172,867.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.