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Finding the Fourth Proportional to 432,632.58, 648,043.69 and 347,934.93

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Solution

The fourth proportional to 432,632.58, 648,043.69 and 347,934.93 is: 521,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,632.58 : 648,043.69 = 347,934.93 : x
  2. Step 2: Convert to fraction form
    432,632.58/648,043.69 = 347,934.93/x
  3. Step 3: Cross multiply
    432,632.58x = 648,043.69 × 347,934.93
  4. Step 4: Simplify right side
    432,632.58x = 225,477,035,917.09
  5. Step 5: Solve for x
    x = 225,477,035,917.09/432,632.58
  6. Step 6: Final answer
    x = 521,174.42

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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.