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Finding the Fourth Proportional to 352,320.75, 528,480.87 and 202,465.46

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Solution

The fourth proportional to 352,320.75, 528,480.87 and 202,465.46 is: 303,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,320.75 : 528,480.87 = 202,465.46 : x
  2. Step 2: Convert to fraction form
    352,320.75/528,480.87 = 202,465.46/x
  3. Step 3: Cross multiply
    352,320.75x = 528,480.87 × 202,465.46
  4. Step 4: Simplify right side
    352,320.75x = 106,999,123,007.71
  5. Step 5: Solve for x
    x = 106,999,123,007.71/352,320.75
  6. Step 6: Final answer
    x = 303,698.05

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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.