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Finding the Fourth Proportional to 589,169.52, 813,088.79 and 443,718.77

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Solution

The fourth proportional to 589,169.52, 813,088.79 and 443,718.77 is: 612,358.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,169.52 : 813,088.79 = 443,718.77 : x
  2. Step 2: Convert to fraction form
    589,169.52/813,088.79 = 443,718.77/x
  3. Step 3: Cross multiply
    589,169.52x = 813,088.79 × 443,718.77
  4. Step 4: Simplify right side
    589,169.52x = 360,782,751,515.55
  5. Step 5: Solve for x
    x = 360,782,751,515.55/589,169.52
  6. Step 6: Final answer
    x = 612,358.14

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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.