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Finding the Fourth Proportional to 578,323.99, 866,884.56 and 223,581.66

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Solution

The fourth proportional to 578,323.99, 866,884.56 and 223,581.66 is: 335,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,323.99 : 866,884.56 = 223,581.66 : x
  2. Step 2: Convert to fraction form
    578,323.99/866,884.56 = 223,581.66/x
  3. Step 3: Cross multiply
    578,323.99x = 866,884.56 × 223,581.66
  4. Step 4: Simplify right side
    578,323.99x = 193,819,488,953.17
  5. Step 5: Solve for x
    x = 193,819,488,953.17/578,323.99
  6. Step 6: Final answer
    x = 335,139.98

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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.