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Finding the Fourth Proportional to 270,497.43, 373,314.18 and 155,780.37

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Solution

The fourth proportional to 270,497.43, 373,314.18 and 155,780.37 is: 214,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,497.43 : 373,314.18 = 155,780.37 : x
  2. Step 2: Convert to fraction form
    270,497.43/373,314.18 = 155,780.37/x
  3. Step 3: Cross multiply
    270,497.43x = 373,314.18 × 155,780.37
  4. Step 4: Simplify right side
    270,497.43x = 58,155,021,670.82
  5. Step 5: Solve for x
    x = 58,155,021,670.82/270,497.43
  6. Step 6: Final answer
    x = 214,992.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.