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Finding the Fourth Proportional to 263,962.80, 395,944.20 and 260,026.20

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Solution

The fourth proportional to 263,962.80, 395,944.20 and 260,026.20 is: 390,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,962.80 : 395,944.20 = 260,026.20 : x
  2. Step 2: Convert to fraction form
    263,962.80/395,944.20 = 260,026.20/x
  3. Step 3: Cross multiply
    263,962.80x = 395,944.20 × 260,026.20
  4. Step 4: Simplify right side
    263,962.80x = 102,955,865,738.04
  5. Step 5: Solve for x
    x = 102,955,865,738.04/263,962.80
  6. Step 6: Final answer
    x = 390,039.30

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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.