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Finding the Fourth Proportional to 320,154.70, 441,819.88 and 174,969.50

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Solution

The fourth proportional to 320,154.70, 441,819.88 and 174,969.50 is: 241,461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,154.70 : 441,819.88 = 174,969.50 : x
  2. Step 2: Convert to fraction form
    320,154.70/441,819.88 = 174,969.50/x
  3. Step 3: Cross multiply
    320,154.70x = 441,819.88 × 174,969.50
  4. Step 4: Simplify right side
    320,154.70x = 77,305,005,559.20
  5. Step 5: Solve for x
    x = 77,305,005,559.20/320,154.70
  6. Step 6: Final answer
    x = 241,461.41

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1.5x scale

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.