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Finding the Fourth Proportional to 328,498.25, 453,328.20 and 177,595.25

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Solution

The fourth proportional to 328,498.25, 453,328.20 and 177,595.25 is: 245,081.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,498.25 : 453,328.20 = 177,595.25 : x
  2. Step 2: Convert to fraction form
    328,498.25/453,328.20 = 177,595.25/x
  3. Step 3: Cross multiply
    328,498.25x = 453,328.20 × 177,595.25
  4. Step 4: Simplify right side
    328,498.25x = 80,508,935,011.05
  5. Step 5: Solve for x
    x = 80,508,935,011.05/328,498.25
  6. Step 6: Final answer
    x = 245,081.78

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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.