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Finding the Fourth Proportional to 465,848.43, 642,866.94 and 261,900.24

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Solution

The fourth proportional to 465,848.43, 642,866.94 and 261,900.24 is: 361,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,848.43 : 642,866.94 = 261,900.24 : x
  2. Step 2: Convert to fraction form
    465,848.43/642,866.94 = 261,900.24/x
  3. Step 3: Cross multiply
    465,848.43x = 642,866.94 × 261,900.24
  4. Step 4: Simplify right side
    465,848.43x = 168,367,005,874.07
  5. Step 5: Solve for x
    x = 168,367,005,874.07/465,848.43
  6. Step 6: Final answer
    x = 361,420.14

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1.5x scale

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.