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Finding the Fourth Proportional to 477,954.40, 716,931.60 and 411,469.60

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Solution

The fourth proportional to 477,954.40, 716,931.60 and 411,469.60 is: 617,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,954.40 : 716,931.60 = 411,469.60 : x
  2. Step 2: Convert to fraction form
    477,954.40/716,931.60 = 411,469.60/x
  3. Step 3: Cross multiply
    477,954.40x = 716,931.60 × 411,469.60
  4. Step 4: Simplify right side
    477,954.40x = 294,995,558,679.36
  5. Step 5: Solve for x
    x = 294,995,558,679.36/477,954.40
  6. Step 6: Final answer
    x = 617,204.40

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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.