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Finding the Fourth Proportional to 387,173.04, 580,863.12 and 350,159.28

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Solution

The fourth proportional to 387,173.04, 580,863.12 and 350,159.28 is: 525,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,173.04 : 580,863.12 = 350,159.28 : x
  2. Step 2: Convert to fraction form
    387,173.04/580,863.12 = 350,159.28/x
  3. Step 3: Cross multiply
    387,173.04x = 580,863.12 × 350,159.28
  4. Step 4: Simplify right side
    387,173.04x = 203,394,611,877.75
  5. Step 5: Solve for x
    x = 203,394,611,877.75/387,173.04
  6. Step 6: Final answer
    x = 525,332.58

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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.