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Finding the Fourth Proportional to 424,710.48, 637,459.56 and 214,495.92

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Solution

The fourth proportional to 424,710.48, 637,459.56 and 214,495.92 is: 321,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,710.48 : 637,459.56 = 214,495.92 : x
  2. Step 2: Convert to fraction form
    424,710.48/637,459.56 = 214,495.92/x
  3. Step 3: Cross multiply
    424,710.48x = 637,459.56 × 214,495.92
  4. Step 4: Simplify right side
    424,710.48x = 136,732,474,785.00
  5. Step 5: Solve for x
    x = 136,732,474,785.00/424,710.48
  6. Step 6: Final answer
    x = 321,942.79

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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.