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Finding the Fourth Proportional to 445,418.92, 668,026.14 and 265,555.24

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Solution

The fourth proportional to 445,418.92, 668,026.14 and 265,555.24 is: 398,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,418.92 : 668,026.14 = 265,555.24 : x
  2. Step 2: Convert to fraction form
    445,418.92/668,026.14 = 265,555.24/x
  3. Step 3: Cross multiply
    445,418.92x = 668,026.14 × 265,555.24
  4. Step 4: Simplify right side
    445,418.92x = 177,397,841,933.97
  5. Step 5: Solve for x
    x = 177,397,841,933.97/445,418.92
  6. Step 6: Final answer
    x = 398,271.91

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1.5x scale

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.