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Finding the Fourth Proportional to 416,727.09, 623,310.46 and 347,920.43

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Solution

The fourth proportional to 416,727.09, 623,310.46 and 347,920.43 is: 520,394.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,727.09 : 623,310.46 = 347,920.43 : x
  2. Step 2: Convert to fraction form
    416,727.09/623,310.46 = 347,920.43/x
  3. Step 3: Cross multiply
    416,727.09x = 623,310.46 × 347,920.43
  4. Step 4: Simplify right side
    416,727.09x = 216,862,439,280.34
  5. Step 5: Solve for x
    x = 216,862,439,280.34/416,727.09
  6. Step 6: Final answer
    x = 520,394.39

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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.