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Finding the Fourth Proportional to 328,035.70, 492,053.55 and 117,694.90

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Solution

The fourth proportional to 328,035.70, 492,053.55 and 117,694.90 is: 176,542.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,035.70 : 492,053.55 = 117,694.90 : x
  2. Step 2: Convert to fraction form
    328,035.70/492,053.55 = 117,694.90/x
  3. Step 3: Cross multiply
    328,035.70x = 492,053.55 × 117,694.90
  4. Step 4: Simplify right side
    328,035.70x = 57,912,193,361.90
  5. Step 5: Solve for x
    x = 57,912,193,361.90/328,035.70
  6. Step 6: Final answer
    x = 176,542.35

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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.