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Finding the Fourth Proportional to 543,259.80, 814,999.05 and 455,123.70

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Solution

The fourth proportional to 543,259.80, 814,999.05 and 455,123.70 is: 682,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,259.80 : 814,999.05 = 455,123.70 : x
  2. Step 2: Convert to fraction form
    543,259.80/814,999.05 = 455,123.70/x
  3. Step 3: Cross multiply
    543,259.80x = 814,999.05 × 455,123.70
  4. Step 4: Simplify right side
    543,259.80x = 370,925,383,132.49
  5. Step 5: Solve for x
    x = 370,925,383,132.49/543,259.80
  6. Step 6: Final answer
    x = 682,777.16

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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.