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Finding the Fourth Proportional to 411,977.80, 617,505.90 and 175,280.20

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Solution

The fourth proportional to 411,977.80, 617,505.90 and 175,280.20 is: 262,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,977.80 : 617,505.90 = 175,280.20 : x
  2. Step 2: Convert to fraction form
    411,977.80/617,505.90 = 175,280.20/x
  3. Step 3: Cross multiply
    411,977.80x = 617,505.90 × 175,280.20
  4. Step 4: Simplify right side
    411,977.80x = 108,236,557,653.18
  5. Step 5: Solve for x
    x = 108,236,557,653.18/411,977.80
  6. Step 6: Final answer
    x = 262,724.25

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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.