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Finding the Fourth Proportional to 352,057.70, 528,086.55 and 293,737.70

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Solution

The fourth proportional to 352,057.70, 528,086.55 and 293,737.70 is: 440,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,057.70 : 528,086.55 = 293,737.70 : x
  2. Step 2: Convert to fraction form
    352,057.70/528,086.55 = 293,737.70/x
  3. Step 3: Cross multiply
    352,057.70x = 528,086.55 × 293,737.70
  4. Step 4: Simplify right side
    352,057.70x = 155,118,928,597.94
  5. Step 5: Solve for x
    x = 155,118,928,597.94/352,057.70
  6. Step 6: Final answer
    x = 440,606.55

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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.