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Finding the Fourth Proportional to 571,236.40, 856,681.89 and 171,771.13

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Solution

The fourth proportional to 571,236.40, 856,681.89 and 171,771.13 is: 257,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,236.40 : 856,681.89 = 171,771.13 : x
  2. Step 2: Convert to fraction form
    571,236.40/856,681.89 = 171,771.13/x
  3. Step 3: Cross multiply
    571,236.40x = 856,681.89 × 171,771.13
  4. Step 4: Simplify right side
    571,236.40x = 147,153,216,295.84
  5. Step 5: Solve for x
    x = 147,153,216,295.84/571,236.40
  6. Step 6: Final answer
    x = 257,604.76

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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.