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Finding the Fourth Proportional to 434,418.80, 651,109.80 and 181,698.80

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Solution

The fourth proportional to 434,418.80, 651,109.80 and 181,698.80 is: 272,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,418.80 : 651,109.80 = 181,698.80 : x
  2. Step 2: Convert to fraction form
    434,418.80/651,109.80 = 181,698.80/x
  3. Step 3: Cross multiply
    434,418.80x = 651,109.80 × 181,698.80
  4. Step 4: Simplify right side
    434,418.80x = 118,305,869,328.24
  5. Step 5: Solve for x
    x = 118,305,869,328.24/434,418.80
  6. Step 6: Final answer
    x = 272,331.38

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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.