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Finding the Fourth Proportional to 575,363.40, 863,433.90 and 322,643.40

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Solution

The fourth proportional to 575,363.40, 863,433.90 and 322,643.40 is: 484,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,363.40 : 863,433.90 = 322,643.40 : x
  2. Step 2: Convert to fraction form
    575,363.40/863,433.90 = 322,643.40/x
  3. Step 3: Cross multiply
    575,363.40x = 863,433.90 × 322,643.40
  4. Step 4: Simplify right side
    575,363.40x = 278,581,249,171.26
  5. Step 5: Solve for x
    x = 278,581,249,171.26/575,363.40
  6. Step 6: Final answer
    x = 484,183.13

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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.