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Finding the Fourth Proportional to 603,805.06, 833,329.79 and 389,568.34

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Solution

The fourth proportional to 603,805.06, 833,329.79 and 389,568.34 is: 537,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,805.06 : 833,329.79 = 389,568.34 : x
  2. Step 2: Convert to fraction form
    603,805.06/833,329.79 = 389,568.34/x
  3. Step 3: Cross multiply
    603,805.06x = 833,329.79 × 389,568.34
  4. Step 4: Simplify right side
    603,805.06x = 324,638,902,962.85
  5. Step 5: Solve for x
    x = 324,638,902,962.85/603,805.06
  6. Step 6: Final answer
    x = 537,655.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.