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Finding the Fourth Proportional to 496,726.01, 685,462.86 and 281,853.26

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Solution

The fourth proportional to 496,726.01, 685,462.86 and 281,853.26 is: 388,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,726.01 : 685,462.86 = 281,853.26 : x
  2. Step 2: Convert to fraction form
    496,726.01/685,462.86 = 281,853.26/x
  3. Step 3: Cross multiply
    496,726.01x = 685,462.86 × 281,853.26
  4. Step 4: Simplify right side
    496,726.01x = 193,199,938,272.61
  5. Step 5: Solve for x
    x = 193,199,938,272.61/496,726.01
  6. Step 6: Final answer
    x = 388,946.70

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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.