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Finding the Fourth Proportional to 328,687.56, 453,579.60 and 185,460.93

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Solution

The fourth proportional to 328,687.56, 453,579.60 and 185,460.93 is: 255,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,687.56 : 453,579.60 = 185,460.93 : x
  2. Step 2: Convert to fraction form
    328,687.56/453,579.60 = 185,460.93/x
  3. Step 3: Cross multiply
    328,687.56x = 453,579.60 × 185,460.93
  4. Step 4: Simplify right side
    328,687.56x = 84,121,294,445.03
  5. Step 5: Solve for x
    x = 84,121,294,445.03/328,687.56
  6. Step 6: Final answer
    x = 255,930.87

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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.