Home / 401,918.61-554,534.07-258,761.54

Finding the Fourth Proportional to 401,918.61, 554,534.07 and 258,761.54

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Solution

The fourth proportional to 401,918.61, 554,534.07 and 258,761.54 is: 357,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,918.61 : 554,534.07 = 258,761.54 : x
  2. Step 2: Convert to fraction form
    401,918.61/554,534.07 = 258,761.54/x
  3. Step 3: Cross multiply
    401,918.61x = 554,534.07 × 258,761.54
  4. Step 4: Simplify right side
    401,918.61x = 143,492,090,351.65
  5. Step 5: Solve for x
    x = 143,492,090,351.65/401,918.61
  6. Step 6: Final answer
    x = 357,017.78

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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.