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Finding the Fourth Proportional to 395,999.40, 593,480.70 and 159,148.20

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Solution

The fourth proportional to 395,999.40, 593,480.70 and 159,148.20 is: 238,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,999.40 : 593,480.70 = 159,148.20 : x
  2. Step 2: Convert to fraction form
    395,999.40/593,480.70 = 159,148.20/x
  3. Step 3: Cross multiply
    395,999.40x = 593,480.70 × 159,148.20
  4. Step 4: Simplify right side
    395,999.40x = 94,451,385,139.74
  5. Step 5: Solve for x
    x = 94,451,385,139.74/395,999.40
  6. Step 6: Final answer
    x = 238,513.96

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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.