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Finding the Fourth Proportional to 465,845.67, 642,863.16 and 261,897.48

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Solution

The fourth proportional to 465,845.67, 642,863.16 and 261,897.48 is: 361,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,845.67 : 642,863.16 = 261,897.48 : x
  2. Step 2: Convert to fraction form
    465,845.67/642,863.16 = 261,897.48/x
  3. Step 3: Cross multiply
    465,845.67x = 642,863.16 × 261,897.48
  4. Step 4: Simplify right side
    465,845.67x = 168,364,241,588.84
  5. Step 5: Solve for x
    x = 168,364,241,588.84/465,845.67
  6. Step 6: Final answer
    x = 361,416.35

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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.