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Finding the Fourth Proportional to 512,530.36, 768,488.82 and 175,458.76

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Solution

The fourth proportional to 512,530.36, 768,488.82 and 175,458.76 is: 263,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,530.36 : 768,488.82 = 175,458.76 : x
  2. Step 2: Convert to fraction form
    512,530.36/768,488.82 = 175,458.76/x
  3. Step 3: Cross multiply
    512,530.36x = 768,488.82 × 175,458.76
  4. Step 4: Simplify right side
    512,530.36x = 134,838,095,431.06
  5. Step 5: Solve for x
    x = 134,838,095,431.06/512,530.36
  6. Step 6: Final answer
    x = 263,083.14

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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.