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Finding the Fourth Proportional to 328,771.80, 453,729.06 and 185,544.36

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Solution

The fourth proportional to 328,771.80, 453,729.06 and 185,544.36 is: 256,064.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,771.80 : 453,729.06 = 185,544.36 : x
  2. Step 2: Convert to fraction form
    328,771.80/453,729.06 = 185,544.36/x
  3. Step 3: Cross multiply
    328,771.80x = 453,729.06 × 185,544.36
  4. Step 4: Simplify right side
    328,771.80x = 84,186,868,051.10
  5. Step 5: Solve for x
    x = 84,186,868,051.10/328,771.80
  6. Step 6: Final answer
    x = 256,064.75

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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.