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Finding the Fourth Proportional to 619,171.40, 927,564.70 and 525,444.68

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Solution

The fourth proportional to 619,171.40, 927,564.70 and 525,444.68 is: 787,155.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,171.40 : 927,564.70 = 525,444.68 : x
  2. Step 2: Convert to fraction form
    619,171.40/927,564.70 = 525,444.68/x
  3. Step 3: Cross multiply
    619,171.40x = 927,564.70 × 525,444.68
  4. Step 4: Simplify right side
    619,171.40x = 487,383,936,970.80
  5. Step 5: Solve for x
    x = 487,383,936,970.80/619,171.40
  6. Step 6: Final answer
    x = 787,155.12

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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.