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Finding the Fourth Proportional to 352,660.48, 531,415.04 and 291,696.64

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Solution

The fourth proportional to 352,660.48, 531,415.04 and 291,696.64 is: 439,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,660.48 : 531,415.04 = 291,696.64 : x
  2. Step 2: Convert to fraction form
    352,660.48/531,415.04 = 291,696.64/x
  3. Step 3: Cross multiply
    352,660.48x = 531,415.04 × 291,696.64
  4. Step 4: Simplify right side
    352,660.48x = 155,011,981,613.47
  5. Step 5: Solve for x
    x = 155,011,981,613.47/352,660.48
  6. Step 6: Final answer
    x = 439,550.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.