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Finding the Fourth Proportional to 465,436.92, 642,111.66 and 295,609.08

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Solution

The fourth proportional to 465,436.92, 642,111.66 and 295,609.08 is: 407,819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,436.92 : 642,111.66 = 295,609.08 : x
  2. Step 2: Convert to fraction form
    465,436.92/642,111.66 = 295,609.08/x
  3. Step 3: Cross multiply
    465,436.92x = 642,111.66 × 295,609.08
  4. Step 4: Simplify right side
    465,436.92x = 189,814,037,069.87
  5. Step 5: Solve for x
    x = 189,814,037,069.87/465,436.92
  6. Step 6: Final answer
    x = 407,819.04

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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.