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Finding the Fourth Proportional to 573,334.45, 791,202.04 and 315,215.78

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Solution

The fourth proportional to 573,334.45, 791,202.04 and 315,215.78 is: 434,998.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,334.45 : 791,202.04 = 315,215.78 : x
  2. Step 2: Convert to fraction form
    573,334.45/791,202.04 = 315,215.78/x
  3. Step 3: Cross multiply
    573,334.45x = 791,202.04 × 315,215.78
  4. Step 4: Simplify right side
    573,334.45x = 249,399,363,432.14
  5. Step 5: Solve for x
    x = 249,399,363,432.14/573,334.45
  6. Step 6: Final answer
    x = 434,998.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.