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Finding the Fourth Proportional to 416,266.80, 624,400.20 and 354,265.35

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Solution

The fourth proportional to 416,266.80, 624,400.20 and 354,265.35 is: 531,398.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,266.80 : 624,400.20 = 354,265.35 : x
  2. Step 2: Convert to fraction form
    416,266.80/624,400.20 = 354,265.35/x
  3. Step 3: Cross multiply
    416,266.80x = 624,400.20 × 354,265.35
  4. Step 4: Simplify right side
    416,266.80x = 221,203,355,393.07
  5. Step 5: Solve for x
    x = 221,203,355,393.07/416,266.80
  6. Step 6: Final answer
    x = 531,398.03

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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.