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Finding the Fourth Proportional to 339,443.34, 468,432 and 186,491.40

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Solution

The fourth proportional to 339,443.34, 468,432 and 186,491.40 is: 257,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,443.34 : 468,432 = 186,491.40 : x
  2. Step 2: Convert to fraction form
    339,443.34/468,432 = 186,491.40/x
  3. Step 3: Cross multiply
    339,443.34x = 468,432 × 186,491.40
  4. Step 4: Simplify right side
    339,443.34x = 87,358,539,484.80
  5. Step 5: Solve for x
    x = 87,358,539,484.80/339,443.34
  6. Step 6: Final answer
    x = 257,358.24

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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.