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Finding the Fourth Proportional to 328,898.05, 453,879.30 and 177,995.05

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Solution

The fourth proportional to 328,898.05, 453,879.30 and 177,995.05 is: 245,633.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,898.05 : 453,879.30 = 177,995.05 : x
  2. Step 2: Convert to fraction form
    328,898.05/453,879.30 = 177,995.05/x
  3. Step 3: Cross multiply
    328,898.05x = 453,879.30 × 177,995.05
  4. Step 4: Simplify right side
    328,898.05x = 80,788,268,697.47
  5. Step 5: Solve for x
    x = 80,788,268,697.47/328,898.05
  6. Step 6: Final answer
    x = 245,633.16

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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.