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Finding the Fourth Proportional to 416,909.20, 624,442.20 and 322,675.60

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Solution

The fourth proportional to 416,909.20, 624,442.20 and 322,675.60 is: 483,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,909.20 : 624,442.20 = 322,675.60 : x
  2. Step 2: Convert to fraction form
    416,909.20/624,442.20 = 322,675.60/x
  3. Step 3: Cross multiply
    416,909.20x = 624,442.20 × 322,675.60
  4. Step 4: Simplify right side
    416,909.20x = 201,492,261,550.32
  5. Step 5: Solve for x
    x = 201,492,261,550.32/416,909.20
  6. Step 6: Final answer
    x = 483,300.11

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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.