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Finding the Fourth Proportional to 368,646.69, 508,610.77 and 300,546.59

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Solution

The fourth proportional to 368,646.69, 508,610.77 and 300,546.59 is: 414,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,646.69 : 508,610.77 = 300,546.59 : x
  2. Step 2: Convert to fraction form
    368,646.69/508,610.77 = 300,546.59/x
  3. Step 3: Cross multiply
    368,646.69x = 508,610.77 × 300,546.59
  4. Step 4: Simplify right side
    368,646.69x = 152,861,232,135.43
  5. Step 5: Solve for x
    x = 152,861,232,135.43/368,646.69
  6. Step 6: Final answer
    x = 414,655.10

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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.