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Finding the Fourth Proportional to 545,884.05, 818,923.29 and 186,034.95

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Solution

The fourth proportional to 545,884.05, 818,923.29 and 186,034.95 is: 279,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,884.05 : 818,923.29 = 186,034.95 : x
  2. Step 2: Convert to fraction form
    545,884.05/818,923.29 = 186,034.95/x
  3. Step 3: Cross multiply
    545,884.05x = 818,923.29 × 186,034.95
  4. Step 4: Simplify right side
    545,884.05x = 152,348,353,308.99
  5. Step 5: Solve for x
    x = 152,348,353,308.99/545,884.05
  6. Step 6: Final answer
    x = 279,085.56

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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.