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Finding the Fourth Proportional to 519,636.48, 717,131.52 and 293,199.36

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Solution

The fourth proportional to 519,636.48, 717,131.52 and 293,199.36 is: 404,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,636.48 : 717,131.52 = 293,199.36 : x
  2. Step 2: Convert to fraction form
    519,636.48/717,131.52 = 293,199.36/x
  3. Step 3: Cross multiply
    519,636.48x = 717,131.52 × 293,199.36
  4. Step 4: Simplify right side
    519,636.48x = 210,262,502,699.83
  5. Step 5: Solve for x
    x = 210,262,502,699.83/519,636.48
  6. Step 6: Final answer
    x = 404,633.84

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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.