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Finding the Fourth Proportional to 404,646.40, 607,240.48 and 167,989.28

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Solution

The fourth proportional to 404,646.40, 607,240.48 and 167,989.28 is: 252,096.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,646.40 : 607,240.48 = 167,989.28 : x
  2. Step 2: Convert to fraction form
    404,646.40/607,240.48 = 167,989.28/x
  3. Step 3: Cross multiply
    404,646.40x = 607,240.48 × 167,989.28
  4. Step 4: Simplify right side
    404,646.40x = 102,009,891,022.05
  5. Step 5: Solve for x
    x = 102,009,891,022.05/404,646.40
  6. Step 6: Final answer
    x = 252,096.38

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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.