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Finding the Fourth Proportional to 544,057.80, 816,086.70 and 411,347.40

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Solution

The fourth proportional to 544,057.80, 816,086.70 and 411,347.40 is: 617,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,057.80 : 816,086.70 = 411,347.40 : x
  2. Step 2: Convert to fraction form
    544,057.80/816,086.70 = 411,347.40/x
  3. Step 3: Cross multiply
    544,057.80x = 816,086.70 × 411,347.40
  4. Step 4: Simplify right side
    544,057.80x = 335,695,142,219.58
  5. Step 5: Solve for x
    x = 335,695,142,219.58/544,057.80
  6. Step 6: Final answer
    x = 617,021.10

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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.