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Finding the Fourth Proportional to 339,328.40, 508,992.60 and 117,712.40

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Solution

The fourth proportional to 339,328.40, 508,992.60 and 117,712.40 is: 176,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,328.40 : 508,992.60 = 117,712.40 : x
  2. Step 2: Convert to fraction form
    339,328.40/508,992.60 = 117,712.40/x
  3. Step 3: Cross multiply
    339,328.40x = 508,992.60 × 117,712.40
  4. Step 4: Simplify right side
    339,328.40x = 59,914,740,528.24
  5. Step 5: Solve for x
    x = 59,914,740,528.24/339,328.40
  6. Step 6: Final answer
    x = 176,568.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.