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Finding the Fourth Proportional to 414,977.30, 621,591.15 and 414,977.30

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Solution

The fourth proportional to 414,977.30, 621,591.15 and 414,977.30 is: 621,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,977.30 : 621,591.15 = 414,977.30 : x
  2. Step 2: Convert to fraction form
    414,977.30/621,591.15 = 414,977.30/x
  3. Step 3: Cross multiply
    414,977.30x = 621,591.15 × 414,977.30
  4. Step 4: Simplify right side
    414,977.30x = 257,946,217,130.90
  5. Step 5: Solve for x
    x = 257,946,217,130.90/414,977.30
  6. Step 6: Final answer
    x = 621,591.15

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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.