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Finding the Fourth Proportional to 307,212.64, 423,962.44 and 179,876.32

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Solution

The fourth proportional to 307,212.64, 423,962.44 and 179,876.32 is: 248,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,212.64 : 423,962.44 = 179,876.32 : x
  2. Step 2: Convert to fraction form
    307,212.64/423,962.44 = 179,876.32/x
  3. Step 3: Cross multiply
    307,212.64x = 423,962.44 × 179,876.32
  4. Step 4: Simplify right side
    307,212.64x = 76,260,803,525.42
  5. Step 5: Solve for x
    x = 76,260,803,525.42/307,212.64
  6. Step 6: Final answer
    x = 248,234.59

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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.