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Finding the Fourth Proportional to 462,487.61, 693,638.46 and 162,980.39

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Solution

The fourth proportional to 462,487.61, 693,638.46 and 162,980.39 is: 244,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,487.61 : 693,638.46 = 162,980.39 : x
  2. Step 2: Convert to fraction form
    462,487.61/693,638.46 = 162,980.39/x
  3. Step 3: Cross multiply
    462,487.61x = 693,638.46 × 162,980.39
  4. Step 4: Simplify right side
    462,487.61x = 113,049,463,261.61
  5. Step 5: Solve for x
    x = 113,049,463,261.61/462,487.61
  6. Step 6: Final answer
    x = 244,437.82

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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.