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Finding the Fourth Proportional to 368,590.23, 508,811.43 and 247,801.56

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Solution

The fourth proportional to 368,590.23, 508,811.43 and 247,801.56 is: 342,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,590.23 : 508,811.43 = 247,801.56 : x
  2. Step 2: Convert to fraction form
    368,590.23/508,811.43 = 247,801.56/x
  3. Step 3: Cross multiply
    368,590.23x = 508,811.43 × 247,801.56
  4. Step 4: Simplify right side
    368,590.23x = 126,084,266,099.83
  5. Step 5: Solve for x
    x = 126,084,266,099.83/368,590.23
  6. Step 6: Final answer
    x = 342,071.64

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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.