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Finding the Fourth Proportional to 462,435.21, 693,180 and 262,332.90

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Solution

The fourth proportional to 462,435.21, 693,180 and 262,332.90 is: 393,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,435.21 : 693,180 = 262,332.90 : x
  2. Step 2: Convert to fraction form
    462,435.21/693,180 = 262,332.90/x
  3. Step 3: Cross multiply
    462,435.21x = 693,180 × 262,332.90
  4. Step 4: Simplify right side
    462,435.21x = 181,843,919,622.00
  5. Step 5: Solve for x
    x = 181,843,919,622.00/462,435.21
  6. Step 6: Final answer
    x = 393,231.13

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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.