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Finding the Fourth Proportional to 362,189.10, 543,721.05 and 359,564.70

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Solution

The fourth proportional to 362,189.10, 543,721.05 and 359,564.70 is: 539,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,189.10 : 543,721.05 = 359,564.70 : x
  2. Step 2: Convert to fraction form
    362,189.10/543,721.05 = 359,564.70/x
  3. Step 3: Cross multiply
    362,189.10x = 543,721.05 × 359,564.70
  4. Step 4: Simplify right side
    362,189.10x = 195,502,896,226.94
  5. Step 5: Solve for x
    x = 195,502,896,226.94/362,189.10
  6. Step 6: Final answer
    x = 539,781.28

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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.