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Finding the Fourth Proportional to 558,263.88, 770,477.67 and 543,064.86

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Solution

The fourth proportional to 558,263.88, 770,477.67 and 543,064.86 is: 749,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,263.88 : 770,477.67 = 543,064.86 : x
  2. Step 2: Convert to fraction form
    558,263.88/770,477.67 = 543,064.86/x
  3. Step 3: Cross multiply
    558,263.88x = 770,477.67 × 543,064.86
  4. Step 4: Simplify right side
    558,263.88x = 418,419,347,991.68
  5. Step 5: Solve for x
    x = 418,419,347,991.68/558,263.88
  6. Step 6: Final answer
    x = 749,501.02

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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.