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Finding the Fourth Proportional to 328,870.76, 453,842.05 and 177,967.76

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Solution

The fourth proportional to 328,870.76, 453,842.05 and 177,967.76 is: 245,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,870.76 : 453,842.05 = 177,967.76 : x
  2. Step 2: Convert to fraction form
    328,870.76/453,842.05 = 177,967.76/x
  3. Step 3: Cross multiply
    328,870.76x = 453,842.05 × 177,967.76
  4. Step 4: Simplify right side
    328,870.76x = 80,769,253,032.31
  5. Step 5: Solve for x
    x = 80,769,253,032.31/328,870.76
  6. Step 6: Final answer
    x = 245,595.73

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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.