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Finding the Fourth Proportional to 395,764.40, 593,646.60 and 100,276.40

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Solution

The fourth proportional to 395,764.40, 593,646.60 and 100,276.40 is: 150,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,764.40 : 593,646.60 = 100,276.40 : x
  2. Step 2: Convert to fraction form
    395,764.40/593,646.60 = 100,276.40/x
  3. Step 3: Cross multiply
    395,764.40x = 593,646.60 × 100,276.40
  4. Step 4: Simplify right side
    395,764.40x = 59,528,743,920.24
  5. Step 5: Solve for x
    x = 59,528,743,920.24/395,764.40
  6. Step 6: Final answer
    x = 150,414.60

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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.