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Finding the Fourth Proportional to 496,607.67, 744,918.34 and 141,621.72

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Solution

The fourth proportional to 496,607.67, 744,918.34 and 141,621.72 is: 212,434.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,607.67 : 744,918.34 = 141,621.72 : x
  2. Step 2: Convert to fraction form
    496,607.67/744,918.34 = 141,621.72/x
  3. Step 3: Cross multiply
    496,607.67x = 744,918.34 × 141,621.72
  4. Step 4: Simplify right side
    496,607.67x = 105,496,619,376.17
  5. Step 5: Solve for x
    x = 105,496,619,376.17/496,607.67
  6. Step 6: Final answer
    x = 212,434.54

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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.