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Finding the Fourth Proportional to 328,507.35, 453,272.43 and 188,778.93

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Solution

The fourth proportional to 328,507.35, 453,272.43 and 188,778.93 is: 260,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,507.35 : 453,272.43 = 188,778.93 : x
  2. Step 2: Convert to fraction form
    328,507.35/453,272.43 = 188,778.93/x
  3. Step 3: Cross multiply
    328,507.35x = 453,272.43 × 188,778.93
  4. Step 4: Simplify right side
    328,507.35x = 85,568,284,333.90
  5. Step 5: Solve for x
    x = 85,568,284,333.90/328,507.35
  6. Step 6: Final answer
    x = 260,476.01

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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.