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Finding the Fourth Proportional to 517,757.04, 776,668.92 and 162,784.80

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Solution

The fourth proportional to 517,757.04, 776,668.92 and 162,784.80 is: 244,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,757.04 : 776,668.92 = 162,784.80 : x
  2. Step 2: Convert to fraction form
    517,757.04/776,668.92 = 162,784.80/x
  3. Step 3: Cross multiply
    517,757.04x = 776,668.92 × 162,784.80
  4. Step 4: Simplify right side
    517,757.04x = 126,429,894,808.42
  5. Step 5: Solve for x
    x = 126,429,894,808.42/517,757.04
  6. Step 6: Final answer
    x = 244,187.69

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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.