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Finding the Fourth Proportional to 328,965.80, 493,645.56 and 302,196.92

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Solution

The fourth proportional to 328,965.80, 493,645.56 and 302,196.92 is: 453,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,965.80 : 493,645.56 = 302,196.92 : x
  2. Step 2: Convert to fraction form
    328,965.80/493,645.56 = 302,196.92/x
  3. Step 3: Cross multiply
    328,965.80x = 493,645.56 × 302,196.92
  4. Step 4: Simplify right side
    328,965.80x = 149,178,167,803.68
  5. Step 5: Solve for x
    x = 149,178,167,803.68/328,965.80
  6. Step 6: Final answer
    x = 453,476.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.