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Finding the Fourth Proportional to 326,694.34, 450,709.54 and 188,782.12

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Solution

The fourth proportional to 326,694.34, 450,709.54 and 188,782.12 is: 260,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,694.34 : 450,709.54 = 188,782.12 : x
  2. Step 2: Convert to fraction form
    326,694.34/450,709.54 = 188,782.12/x
  3. Step 3: Cross multiply
    326,694.34x = 450,709.54 × 188,782.12
  4. Step 4: Simplify right side
    326,694.34x = 85,085,902,465.42
  5. Step 5: Solve for x
    x = 85,085,902,465.42/326,694.34
  6. Step 6: Final answer
    x = 260,444.98

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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.