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Finding the Fourth Proportional to 414,500.90, 621,751.35 and 365,512.10

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Solution

The fourth proportional to 414,500.90, 621,751.35 and 365,512.10 is: 548,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,500.90 : 621,751.35 = 365,512.10 : x
  2. Step 2: Convert to fraction form
    414,500.90/621,751.35 = 365,512.10/x
  3. Step 3: Cross multiply
    414,500.90x = 621,751.35 × 365,512.10
  4. Step 4: Simplify right side
    414,500.90x = 227,257,641,616.34
  5. Step 5: Solve for x
    x = 227,257,641,616.34/414,500.90
  6. Step 6: Final answer
    x = 548,268.15

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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.