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Finding the Fourth Proportional to 461,628.80, 692,536.80 and 262,044.80

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Solution

The fourth proportional to 461,628.80, 692,536.80 and 262,044.80 is: 393,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,628.80 : 692,536.80 = 262,044.80 : x
  2. Step 2: Convert to fraction form
    461,628.80/692,536.80 = 262,044.80/x
  3. Step 3: Cross multiply
    461,628.80x = 692,536.80 × 262,044.80
  4. Step 4: Simplify right side
    461,628.80x = 181,475,667,248.64
  5. Step 5: Solve for x
    x = 181,475,667,248.64/461,628.80
  6. Step 6: Final answer
    x = 393,120.33

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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.