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Finding the Fourth Proportional to 328,454.56, 453,267.95 and 177,551.56

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Solution

The fourth proportional to 328,454.56, 453,267.95 and 177,551.56 is: 245,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,454.56 : 453,267.95 = 177,551.56 : x
  2. Step 2: Convert to fraction form
    328,454.56/453,267.95 = 177,551.56/x
  3. Step 3: Cross multiply
    328,454.56x = 453,267.95 × 177,551.56
  4. Step 4: Simplify right side
    328,454.56x = 80,478,432,298.06
  5. Step 5: Solve for x
    x = 80,478,432,298.06/328,454.56
  6. Step 6: Final answer
    x = 245,021.51

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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.