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Finding the Fourth Proportional to 432,816.87, 652,179.60 and 355,659.51

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Solution

The fourth proportional to 432,816.87, 652,179.60 and 355,659.51 is: 535,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,816.87 : 652,179.60 = 355,659.51 : x
  2. Step 2: Convert to fraction form
    432,816.87/652,179.60 = 355,659.51/x
  3. Step 3: Cross multiply
    432,816.87x = 652,179.60 × 355,659.51
  4. Step 4: Simplify right side
    432,816.87x = 231,953,877,709.30
  5. Step 5: Solve for x
    x = 231,953,877,709.30/432,816.87
  6. Step 6: Final answer
    x = 535,916.90

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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.