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Finding the Fourth Proportional to 765,654, 1,148,393.36 and 204,732.24

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Solution

The fourth proportional to 765,654, 1,148,393.36 and 204,732.24 is: 307,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,654 : 1,148,393.36 = 204,732.24 : x
  2. Step 2: Convert to fraction form
    765,654/1,148,393.36 = 204,732.24/x
  3. Step 3: Cross multiply
    765,654x = 1,148,393.36 × 204,732.24
  4. Step 4: Simplify right side
    765,654x = 235,113,144,993.93
  5. Step 5: Solve for x
    x = 235,113,144,993.93/765,654
  6. Step 6: Final answer
    x = 307,074.93

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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.