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Finding the Fourth Proportional to 416,076.40, 624,114.60 and 389,832.40

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Solution

The fourth proportional to 416,076.40, 624,114.60 and 389,832.40 is: 584,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,076.40 : 624,114.60 = 389,832.40 : x
  2. Step 2: Convert to fraction form
    416,076.40/624,114.60 = 389,832.40/x
  3. Step 3: Cross multiply
    416,076.40x = 624,114.60 × 389,832.40
  4. Step 4: Simplify right side
    416,076.40x = 243,300,092,393.04
  5. Step 5: Solve for x
    x = 243,300,092,393.04/416,076.40
  6. Step 6: Final answer
    x = 584,748.60

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1.5x scale

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.