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Finding the Fourth Proportional to 372,243.60, 513,653.40 and 211,066.56

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Solution

The fourth proportional to 372,243.60, 513,653.40 and 211,066.56 is: 291,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,243.60 : 513,653.40 = 211,066.56 : x
  2. Step 2: Convert to fraction form
    372,243.60/513,653.40 = 211,066.56/x
  3. Step 3: Cross multiply
    372,243.60x = 513,653.40 × 211,066.56
  4. Step 4: Simplify right side
    372,243.60x = 108,415,056,170.30
  5. Step 5: Solve for x
    x = 108,415,056,170.30/372,243.60
  6. Step 6: Final answer
    x = 291,247.60

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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.