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Finding the Fourth Proportional to 477,744.80, 716,617.20 and 267,355.40

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Solution

The fourth proportional to 477,744.80, 716,617.20 and 267,355.40 is: 401,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,744.80 : 716,617.20 = 267,355.40 : x
  2. Step 2: Convert to fraction form
    477,744.80/716,617.20 = 267,355.40/x
  3. Step 3: Cross multiply
    477,744.80x = 716,617.20 × 267,355.40
  4. Step 4: Simplify right side
    477,744.80x = 191,591,478,152.88
  5. Step 5: Solve for x
    x = 191,591,478,152.88/477,744.80
  6. Step 6: Final answer
    x = 401,033.10

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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.