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Finding the Fourth Proportional to 530,889.73, 732,639.03 and 289,171.72

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Solution

The fourth proportional to 530,889.73, 732,639.03 and 289,171.72 is: 399,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,889.73 : 732,639.03 = 289,171.72 : x
  2. Step 2: Convert to fraction form
    530,889.73/732,639.03 = 289,171.72/x
  3. Step 3: Cross multiply
    530,889.73x = 732,639.03 × 289,171.72
  4. Step 4: Simplify right side
    530,889.73x = 211,858,488,275.64
  5. Step 5: Solve for x
    x = 211,858,488,275.64/530,889.73
  6. Step 6: Final answer
    x = 399,063.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.