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Finding the Fourth Proportional to 544,137.80, 816,206.70 and 411,427.40

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Solution

The fourth proportional to 544,137.80, 816,206.70 and 411,427.40 is: 617,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,137.80 : 816,206.70 = 411,427.40 : x
  2. Step 2: Convert to fraction form
    544,137.80/816,206.70 = 411,427.40/x
  3. Step 3: Cross multiply
    544,137.80x = 816,206.70 × 411,427.40
  4. Step 4: Simplify right side
    544,137.80x = 335,809,800,443.58
  5. Step 5: Solve for x
    x = 335,809,800,443.58/544,137.80
  6. Step 6: Final answer
    x = 617,141.10

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Half scale
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Double scale
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Similar ratio
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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.