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Finding the Fourth Proportional to 401,508.50, 554,042.43 and 240,360.01

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Solution

The fourth proportional to 401,508.50, 554,042.43 and 240,360.01 is: 331,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,508.50 : 554,042.43 = 240,360.01 : x
  2. Step 2: Convert to fraction form
    401,508.50/554,042.43 = 240,360.01/x
  3. Step 3: Cross multiply
    401,508.50x = 554,042.43 × 240,360.01
  4. Step 4: Simplify right side
    401,508.50x = 133,169,642,630.12
  5. Step 5: Solve for x
    x = 133,169,642,630.12/401,508.50
  6. Step 6: Final answer
    x = 331,673.29

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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.