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Finding the Fourth Proportional to 364,287.81, 503,109.26 and 277,319.01

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Solution

The fourth proportional to 364,287.81, 503,109.26 and 277,319.01 is: 382,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,287.81 : 503,109.26 = 277,319.01 : x
  2. Step 2: Convert to fraction form
    364,287.81/503,109.26 = 277,319.01/x
  3. Step 3: Cross multiply
    364,287.81x = 503,109.26 × 277,319.01
  4. Step 4: Simplify right side
    364,287.81x = 139,521,761,905.03
  5. Step 5: Solve for x
    x = 139,521,761,905.03/364,287.81
  6. Step 6: Final answer
    x = 382,998.71

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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.