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Finding the Fourth Proportional to 328,970.97, 453,970.58 and 185,744.34

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Solution

The fourth proportional to 328,970.97, 453,970.58 and 185,744.34 is: 256,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,970.97 : 453,970.58 = 185,744.34 : x
  2. Step 2: Convert to fraction form
    328,970.97/453,970.58 = 185,744.34/x
  3. Step 3: Cross multiply
    328,970.97x = 453,970.58 × 185,744.34
  4. Step 4: Simplify right side
    328,970.97x = 84,322,464,832.80
  5. Step 5: Solve for x
    x = 84,322,464,832.80/328,970.97
  6. Step 6: Final answer
    x = 256,321.90

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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.