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Finding the Fourth Proportional to 294,769.92, 406,790.40 and 160,642.56

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Solution

The fourth proportional to 294,769.92, 406,790.40 and 160,642.56 is: 221,691.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,769.92 : 406,790.40 = 160,642.56 : x
  2. Step 2: Convert to fraction form
    294,769.92/406,790.40 = 160,642.56/x
  3. Step 3: Cross multiply
    294,769.92x = 406,790.40 × 160,642.56
  4. Step 4: Simplify right side
    294,769.92x = 65,347,851,239.42
  5. Step 5: Solve for x
    x = 65,347,851,239.42/294,769.92
  6. Step 6: Final answer
    x = 221,691.04

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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.