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Finding the Fourth Proportional to 326,695.34, 450,710.92 and 188,783.12

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Solution

The fourth proportional to 326,695.34, 450,710.92 and 188,783.12 is: 260,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,695.34 : 450,710.92 = 188,783.12 : x
  2. Step 2: Convert to fraction form
    326,695.34/450,710.92 = 188,783.12/x
  3. Step 3: Cross multiply
    326,695.34x = 450,710.92 × 188,783.12
  4. Step 4: Simplify right side
    326,695.34x = 85,086,613,695.67
  5. Step 5: Solve for x
    x = 85,086,613,695.67/326,695.34
  6. Step 6: Final answer
    x = 260,446.36

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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.