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Finding the Fourth Proportional to 545,332.06, 816,779.96 and 395,227.76

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Solution

The fourth proportional to 545,332.06, 816,779.96 and 395,227.76 is: 591,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,332.06 : 816,779.96 = 395,227.76 : x
  2. Step 2: Convert to fraction form
    545,332.06/816,779.96 = 395,227.76/x
  3. Step 3: Cross multiply
    545,332.06x = 816,779.96 × 395,227.76
  4. Step 4: Simplify right side
    545,332.06x = 322,814,114,003.69
  5. Step 5: Solve for x
    x = 322,814,114,003.69/545,332.06
  6. Step 6: Final answer
    x = 591,958.80

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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.