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Finding the Fourth Proportional to 401,866.67, 554,603.73 and 265,664.42

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Solution

The fourth proportional to 401,866.67, 554,603.73 and 265,664.42 is: 366,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,866.67 : 554,603.73 = 265,664.42 : x
  2. Step 2: Convert to fraction form
    401,866.67/554,603.73 = 265,664.42/x
  3. Step 3: Cross multiply
    401,866.67x = 554,603.73 × 265,664.42
  4. Step 4: Simplify right side
    401,866.67x = 147,338,478,260.29
  5. Step 5: Solve for x
    x = 147,338,478,260.29/401,866.67
  6. Step 6: Final answer
    x = 366,635.23

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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.