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Finding the Fourth Proportional to 501,999.93, 692,751.29 and 275,643.81

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Solution

The fourth proportional to 501,999.93, 692,751.29 and 275,643.81 is: 380,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,999.93 : 692,751.29 = 275,643.81 : x
  2. Step 2: Convert to fraction form
    501,999.93/692,751.29 = 275,643.81/x
  3. Step 3: Cross multiply
    501,999.93x = 692,751.29 × 275,643.81
  4. Step 4: Simplify right side
    501,999.93x = 190,952,603,579.80
  5. Step 5: Solve for x
    x = 190,952,603,579.80/501,999.93
  6. Step 6: Final answer
    x = 380,383.73

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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.