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Finding the Fourth Proportional to 493,444.20, 740,239.20 and 156,516.60

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Solution

The fourth proportional to 493,444.20, 740,239.20 and 156,516.60 is: 234,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,444.20 : 740,239.20 = 156,516.60 : x
  2. Step 2: Convert to fraction form
    493,444.20/740,239.20 = 156,516.60/x
  3. Step 3: Cross multiply
    493,444.20x = 740,239.20 × 156,516.60
  4. Step 4: Simplify right side
    493,444.20x = 115,859,722,770.72
  5. Step 5: Solve for x
    x = 115,859,722,770.72/493,444.20
  6. Step 6: Final answer
    x = 234,798.02

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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.