Home / 621,136.08-932,065.38-261,280.62

Finding the Fourth Proportional to 621,136.08, 932,065.38 and 261,280.62

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Solution

The fourth proportional to 621,136.08, 932,065.38 and 261,280.62 is: 392,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,136.08 : 932,065.38 = 261,280.62 : x
  2. Step 2: Convert to fraction form
    621,136.08/932,065.38 = 261,280.62/x
  3. Step 3: Cross multiply
    621,136.08x = 932,065.38 × 261,280.62
  4. Step 4: Simplify right side
    621,136.08x = 243,530,620,366.94
  5. Step 5: Solve for x
    x = 243,530,620,366.94/621,136.08
  6. Step 6: Final answer
    x = 392,072.89

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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.