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Finding the Fourth Proportional to 372,158.56, 513,567.84 and 211,028.32

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Solution

The fourth proportional to 372,158.56, 513,567.84 and 211,028.32 is: 291,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,158.56 : 513,567.84 = 211,028.32 : x
  2. Step 2: Convert to fraction form
    372,158.56/513,567.84 = 211,028.32/x
  3. Step 3: Cross multiply
    372,158.56x = 513,567.84 × 211,028.32
  4. Step 4: Simplify right side
    372,158.56x = 108,377,358,481.23
  5. Step 5: Solve for x
    x = 108,377,358,481.23/372,158.56
  6. Step 6: Final answer
    x = 291,212.86

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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.