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Finding the Fourth Proportional to 360,923.40, 541,385.10 and 329,430.60

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Solution

The fourth proportional to 360,923.40, 541,385.10 and 329,430.60 is: 494,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,923.40 : 541,385.10 = 329,430.60 : x
  2. Step 2: Convert to fraction form
    360,923.40/541,385.10 = 329,430.60/x
  3. Step 3: Cross multiply
    360,923.40x = 541,385.10 × 329,430.60
  4. Step 4: Simplify right side
    360,923.40x = 178,348,818,324.06
  5. Step 5: Solve for x
    x = 178,348,818,324.06/360,923.40
  6. Step 6: Final answer
    x = 494,145.90

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1.5x scale

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.