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Finding the Fourth Proportional to 521,888.36, 781,576.23 and 296,697.83

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Solution

The fourth proportional to 521,888.36, 781,576.23 and 296,697.83 is: 444,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,888.36 : 781,576.23 = 296,697.83 : x
  2. Step 2: Convert to fraction form
    521,888.36/781,576.23 = 296,697.83/x
  3. Step 3: Cross multiply
    521,888.36x = 781,576.23 × 296,697.83
  4. Step 4: Simplify right side
    521,888.36x = 231,891,971,420.58
  5. Step 5: Solve for x
    x = 231,891,971,420.58/521,888.36
  6. Step 6: Final answer
    x = 444,332.52

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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.