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Finding the Fourth Proportional to 465,575.96, 642,446.93 and 261,594.46

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Solution

The fourth proportional to 465,575.96, 642,446.93 and 261,594.46 is: 360,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,575.96 : 642,446.93 = 261,594.46 : x
  2. Step 2: Convert to fraction form
    465,575.96/642,446.93 = 261,594.46/x
  3. Step 3: Cross multiply
    465,575.96x = 642,446.93 × 261,594.46
  4. Step 4: Simplify right side
    465,575.96x = 168,060,557,732.01
  5. Step 5: Solve for x
    x = 168,060,557,732.01/465,575.96
  6. Step 6: Final answer
    x = 360,973.44

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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.