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Finding the Fourth Proportional to 619,567.71, 929,141.07 and 214,665.41

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Solution

The fourth proportional to 619,567.71, 929,141.07 and 214,665.41 is: 321,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,567.71 : 929,141.07 = 214,665.41 : x
  2. Step 2: Convert to fraction form
    619,567.71/929,141.07 = 214,665.41/x
  3. Step 3: Cross multiply
    619,567.71x = 929,141.07 × 214,665.41
  4. Step 4: Simplify right side
    619,567.71x = 199,454,446,057.36
  5. Step 5: Solve for x
    x = 199,454,446,057.36/619,567.71
  6. Step 6: Final answer
    x = 321,925.18

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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.