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Finding the Fourth Proportional to 621,658.72, 932,485.00 and 537,161.75

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Solution

The fourth proportional to 621,658.72, 932,485.00 and 537,161.75 is: 805,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,658.72 : 932,485.00 = 537,161.75 : x
  2. Step 2: Convert to fraction form
    621,658.72/932,485.00 = 537,161.75/x
  3. Step 3: Cross multiply
    621,658.72x = 932,485.00 × 537,161.75
  4. Step 4: Simplify right side
    621,658.72x = 500,895,268,443.42
  5. Step 5: Solve for x
    x = 500,895,268,443.42/621,658.72
  6. Step 6: Final answer
    x = 805,739.96

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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.