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Finding the Fourth Proportional to 466,430.45, 699,649.60 and 129,497.38

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Solution

The fourth proportional to 466,430.45, 699,649.60 and 129,497.38 is: 194,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,430.45 : 699,649.60 = 129,497.38 : x
  2. Step 2: Convert to fraction form
    466,430.45/699,649.60 = 129,497.38/x
  3. Step 3: Cross multiply
    466,430.45x = 699,649.60 × 129,497.38
  4. Step 4: Simplify right side
    466,430.45x = 90,602,787,721.44
  5. Step 5: Solve for x
    x = 90,602,787,721.44/466,430.45
  6. Step 6: Final answer
    x = 194,247.15

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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.