Home / 496,208.13-685,698.08-405,531.01

Finding the Fourth Proportional to 496,208.13, 685,698.08 and 405,531.01

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Solution

The fourth proportional to 496,208.13, 685,698.08 and 405,531.01 is: 560,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,208.13 : 685,698.08 = 405,531.01 : x
  2. Step 2: Convert to fraction form
    496,208.13/685,698.08 = 405,531.01/x
  3. Step 3: Cross multiply
    496,208.13x = 685,698.08 × 405,531.01
  4. Step 4: Simplify right side
    496,208.13x = 278,071,833,331.55
  5. Step 5: Solve for x
    x = 278,071,833,331.55/496,208.13
  6. Step 6: Final answer
    x = 560,393.55

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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.