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Finding the Fourth Proportional to 575,163.40, 863,133.90 and 322,443.40

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Solution

The fourth proportional to 575,163.40, 863,133.90 and 322,443.40 is: 483,883.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,163.40 : 863,133.90 = 322,443.40 : x
  2. Step 2: Convert to fraction form
    575,163.40/863,133.90 = 322,443.40/x
  3. Step 3: Cross multiply
    575,163.40x = 863,133.90 × 322,443.40
  4. Step 4: Simplify right side
    575,163.40x = 278,311,829,371.26
  5. Step 5: Solve for x
    x = 278,311,829,371.26/575,163.40
  6. Step 6: Final answer
    x = 483,883.07

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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.