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Finding the Fourth Proportional to 621,658.81, 932,485.13 and 537,161.85

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Solution

The fourth proportional to 621,658.81, 932,485.13 and 537,161.85 is: 805,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,658.81 : 932,485.13 = 537,161.85 : x
  2. Step 2: Convert to fraction form
    621,658.81/932,485.13 = 537,161.85/x
  3. Step 3: Cross multiply
    621,658.81x = 932,485.13 × 537,161.85
  4. Step 4: Simplify right side
    621,658.81x = 500,895,436,856.84
  5. Step 5: Solve for x
    x = 500,895,436,856.84/621,658.81
  6. Step 6: Final answer
    x = 805,740.11

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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.